Glenn Spiczak

University of Wisconsin-River Falls

H-index: 104

North America-United States

About Glenn Spiczak

Glenn Spiczak, With an exceptional h-index of 104 and a recent h-index of 67 (since 2020), a distinguished researcher at University of Wisconsin-River Falls, specializes in the field of astrophysics, high energy particle physics, cosmic rays, neutrinos, south pole.

His recent articles reflect a diverse array of research interests and contributions to the field:

In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory

Improved modeling of in-ice particle showers for IceCube event reconstruction

Search for decoherence from quantum gravity with atmospheric neutrinos

Acceptance Tests of more than 10 000 Photomultiplier Tubes for the multi-PMT Digital Optical Modules of the IceCube Upgrade

Characterization of the Astrophysical Diffuse Neutrino Flux using Starting Track Events in IceCube

Observation of seven astrophysical tau neutrino candidates with IceCube

VizieR Online Data Catalog: IceCube Event Catalog of Alert Tracks (ICECAT-1)(Abbasi+, 2023)

Search for 10–1000 GeV Neutrinos from Gamma-Ray Bursts with IceCube

Glenn Spiczak Information

University	University of Wisconsin-River Falls
Position	___
Citations(all)	39712
Citations(since 2020)	19859
Cited By	27283
hIndex(all)	104
hIndex(since 2020)	67
i10Index(all)	253
i10Index(since 2020)	191
Email	Access Email
University Profile Page	University of Wisconsin-River Falls

Glenn Spiczak Skills & Research Interests

astrophysics

high energy particle physics

cosmic rays

neutrinos

south pole

Top articles of Glenn Spiczak

In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory

Authors

Rasha Abbasi,Markus Ackermann,Jenni Adams,Nakul Aggarwal,Juanan Aguilar,Markus Ahlers,Maryon Ahrens,Jean-Marco Alameddine,Antonio Augusto Alves Junior,Najia Moureen Binte Amin,Karen Andeen,Tyler Anderson,Gisela Anton,Carlos Argüelles,Yosuke Ashida,Sofia Athanasiadou,Spencer Axani,Xinhua Bai,Aswathi Balagopal V,Moreno Baricevic,Steve Barwick,Vedant Basu,Ryan Bay,James Beatty,Karl Heinz Becker,Julia Becker Tjus,Jakob Beise,Chiara Bellenghi,Samuel Benda,Segev BenZvi,David Berley,Elisa Bernardini,Dave Besson,Gary Binder,Daniel Bindig,Erik Blaufuss,Summer Blot,Federico Bontempo,Julia Book,Jürgen Borowka,Caterina Boscolo Meneguolo,Sebastian Böser,Olga Botner,Jakob Böttcher,Etienne Bourbeau,Jim Braun,Bennett Brinson,Jannes Brostean-Kaiser,Ryan Burley,Raffaela Busse,Michael Campana,Erin Carnie-Bronca,Chujie Chen,Zheyang Chen,Dmitry Chirkin,Koun Choi,Brian Clark,Lew Classen,Alan Coleman,Gabriel Collin,Amy Connolly,Janet Conrad,Paul Coppin,Pablo Correa,Stefan Countryman,Doug Cowen,Robert Cross,Christian Dappen,Pranav Dave,Catherine De Clercq,James DeLaunay,Diyaselis Delgado López,Hans Dembinski,Kunal Deoskar,Abhishek Desai,Paolo Desiati,Krijn de Vries,Gwenhael de Wasseige,Tyce DeYoung,Alejandro Diaz,Juan Carlos Díaz-Vélez,Markus Dittmer,Hrvoje Dujmovic,Michael DuVernois,Thomas Ehrhardt,Philipp Eller,Ralph Engel,Hannah Erpenbeck,John Evans,Paul Evenson,Kwok Lung Fan,Ali Fazely,Anatoli Fedynitch,Nora Feigl,Sebastian Fiedlschuster,Aaron Fienberg,Chad Finley,Leander Fischer,Derek Fox,Anna Franckowiak,Elizabeth Friedman,Alexander Fritz,Philipp Fürst,Tom Gaisser,Jay Gallagher,Erik Ganster,Alfonso Garcia,Simone Garrappa,Lisa Gerhardt,Ava Ghadimi,Christian Glaser,Thorsten Glüsenkamp,Theo Glauch,Noah Goehlke,Javier Gonzalez,Sreetama Goswami,Darren Grant,Shannon Gray,Timothée Grégoire,Spencer Griswold,Christoph Günther,Pascal Gutjahr,Christian Haack,Allan Hallgren,Robert Halliday,Lasse Halve,Francis Halzen,Hassane Hamdaoui,Martin Ha Minh,Kael Hanson,John Hardin,Alexander Harnisch,Patrick Hatch,Andreas Haungs,Klaus Helbing,Jonas Hellrung,Felix Henningsen,Lars Heuermann,Stephanie Hickford,Colton Hill,Gary Hill,Kara Hoffman,Kotoyo Hoshina,Wenjie Hou,Thomas Huber,Klas Hultqvist,Mirco Hünnefeld,Raamis Hussain,Karolin Hymon,Seongjin In

Journal

The Cryosphere

Published Date

2024/1/4

The IceCube Neutrino Observatory instruments about 1 km of deep, glacial ice at the geographic South Pole. It uses 5160 photomultipliers to detect Cherenkov light emitted by charged relativistic particles. An unexpected light propagation effect observed by the experiment is an anisotropic attenuation, which is aligned with the local flow direction of the ice. We examine birefringent light propagation through the polycrystalline ice microstructure as a possible explanation for this effect. The predictions of a first-principles model developed for this purpose, in particular curved light trajectories resulting from asymmetric diffusion, provide a qualitatively good match to the main features of the data. This in turn allows us to deduce ice crystal properties. Since the wavelength of the detected light is short compared to the crystal size, these crystal properties include not only the crystal orientation fabric, but also the average crystal size and shape, as a function of depth. By adding small empirical corrections to this first-principles model, a quantitatively accurate description of the optical properties of the IceCube glacial ice is obtained. In this paper, we present the experimental signature of ice optical anisotropy observed in IceCube light-emitting diode (LED) calibration data, the theory and parameterization of the birefringence effect, the fitting procedures of these parameterizations to experimental data, and the inferred crystal properties.

Improved modeling of in-ice particle showers for IceCube event reconstruction

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,L Ausborm,SN Axani,X Bai,M Baricevic,SW Barwick,S Bash,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,J Braun,B Brinson,J Brostean-Kaiser,L Brusa,RT Burley,RS Busse,D Butterfield,MA Campana,I Caracas,K Carloni,J Carpio,S Chattopadhyay,N Chau,Z Chen,D Chirkin,S Choi,BA Clark,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,R Corley,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,L Draper,H Dujmovic,K Dutta,MA DuVernois,T Ehrhardt,L Eidenschink,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,P Fürst,J Gallagher,E Ganster,A Garcia,E Genton,L Gerhardt,A Ghadimi,C Girard-Carillo,C Glaser,T Glüsenkamp,JG Gonzalez,S Goswami,A Granados,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Ha,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,M Handt,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,J Häußler,K Helbing,J Hellrung,J Hermannsgabner,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman

Journal

arXiv preprint arXiv:2403.02470

Published Date

2024/3/4

The IceCube Neutrino Observatory relies on an array of photomultiplier tubes to detect Cherenkov light produced by charged particles in the South Pole ice. IceCube data analyses depend on an in-depth characterization of the glacial ice, and on novel approaches in event reconstruction that utilize fast approximations of photoelectron yields. Here, a more accurate model is derived for event reconstruction that better captures our current knowledge of ice optical properties. When evaluated on a Monte Carlo simulation set, the median angular resolution for in-ice particle showers improves by over a factor of three compared to a reconstruction based on a simplified model of the ice. The most substantial improvement is obtained when including effects of birefringence due to the polycrystalline structure of the ice. When evaluated on data classified as particle showers in the high-energy starting events sample, a significantly improved description of the events is observed.

Search for decoherence from quantum gravity with atmospheric neutrinos

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Arguelles,Y Ashida,S Athanasiadou,L Ausborm,SN Axani,X Bai,A Balagopal,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Boser,O Botner,J Bottcher,J Braun,B Brinson,J Brostean-Kaiser,L Brusa,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Diaz-Velez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsasser,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,P Furst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glusenkamp,JG Gonzalez,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Gunther,P Gutjahr,C Ha,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,M Handt,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,J Haussler,K Helbing,J Hellrung,J Hermannsgabner,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hunnefeld,R Hussain,K Hymon

Journal

Nature Physics

Published Date

2024

Neutrino oscillations at the highest energies and longest baselines can be used to study the structure of spacetime and test the fundamental principles of quantum mechanics. If the metric of spacetime has a quantum mechanical description, its fluctuations at the Planck scale are expected to introduce non-unitary effects that are inconsistent with the standard unitary time evolution of quantum mechanics. Neutrinos interacting with such fluctuations would lose their quantum coherence, deviating from the expected oscillatory flavour composition at long distances and high energies. Here we use atmospheric neutrinos detected by the IceCube South Pole Neutrino Observatory in the energy range of 0.5-10.0 TeV to search for coherence loss in neutrino propagation. We find no evidence of anomalous neutrino decoherence and determine limits on neutrino-quantum gravity interactions. The constraint on the effective decoherence strength parameter within an energy-independent decoherence model improves on previous limits by a factor of 30. For decoherence effects scaling as E2, our limits are advanced by more than six orders of magnitude beyond past measurements compared with the state of the art. Interactions of atmospheric neutrinos with quantum-gravity-induced fluctuations of the metric of spacetime would lead to decoherence. The IceCube Collaboration constrains such interactions with atmospheric neutrinos.

Acceptance Tests of more than 10 000 Photomultiplier Tubes for the multi-PMT Digital Optical Modules of the IceCube Upgrade

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,C Argüelles,Y Ashida,S Athanasiadou,L Ausborm,SN Axani,X Bai,M Baricevic,SW Barwick,S Bash,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,L Bloom,S Blot,F Bontempo,JY Motzkin,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,J Braun,B Brinson,J Brostean-Kaiser,L Brusa,RT Burley,D Butterfield,MA Campana,I Caracas,K Carloni,J Carpio,S Chattopadhyay,N Chau,Z Chen,D Chirkin,S Choi,BA Clark,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,R Corley,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,P Dierichs,M Dittmer,A Domi,L Draper,H Dujmovic,K Dutta,MA DuVernois,T Ehrhardt,L Eidenschink,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,S Fukami,P Fürst,J Gallagher,E Ganster,A Garcia,M Garcia,G Garg,E Genton,L Gerhardt,A Ghadimi,C Girard-Carillo,C Glaser,T Glüsenkamp,JG Gonzalez,S Goswami,A Granados,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Ha,C Haack,A Hallgren,L Halve,F Halzen,H Hamdaoui,M Ha Minh,M Handt,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,J Häußler,K Helbing,J Hellrung,J Hermannsgabner,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill

Journal

arXiv preprint arXiv:2404.19589

Published Date

2024/4/30

More than 10,000 photomultiplier tubes (PMTs) with a diameter of 80 mm will be installed in multi-PMT Digital Optical Modules (mDOMs) of the IceCube Upgrade. These have been tested and pre-calibrated at two sites. A throughput of more than 1000 PMTs per week with both sites was achieved with a modular design of the testing facilities and highly automated testing procedures. The testing facilities can easily be adapted to other PMTs, such that they can, e.g., be re-used for testing the PMTs for IceCube-Gen2. Single photoelectron response, high voltage dependence, time resolution, prepulse, late pulse, afterpulse probabilities, and dark rates were measured for each PMT. We describe the design of the testing facilities, the testing procedures, and the results of the acceptance tests.

Characterization of the Astrophysical Diffuse Neutrino Flux using Starting Track Events in IceCube

Authors

Journal

arXiv preprint arXiv:2402.18026

Published Date

2024/2/28

A measurement of the diffuse astrophysical neutrino spectrum is presented using IceCube data collected from 2011-2022 (10.3 years). We developed novel detection techniques to search for events with a contained vertex and exiting track induced by muon neutrinos undergoing a charged-current interaction. Searching for these starting track events allows us to not only more effectively reject atmospheric muons but also atmospheric neutrino backgrounds in the southern sky, opening a new window to the sub-100 TeV astrophysical neutrino sky. The event selection is constructed using a dynamic starting track veto and machine learning algorithms. We use this data to measure the astrophysical diffuse flux as a single power law flux (SPL) with a best-fit spectral index of and per-flavor normalization of $\phi^{\mathrm{Astro}}_{\mathrm{per-flavor}} = 1.68 ^{+0.19}_{-0.22} \times 10^{-18} \times \mathrm{GeV}^{-1} \mathrm{cm}^{-2} \mathrm{s}^{-1} \mathrm{sr}^{-1}$ (at 100 TeV). The sensitive energy range for this dataset is 3 - 550 TeV under the SPL assumption. This data was also used to measure the flux under a broken power law, however we did not find any evidence of a low energy cutoff.

Observation of seven astrophysical tau neutrino candidates with IceCube

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,VA Balagopal,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,N Feigl,S Fiedlschuster,AT Fienberg,C Finley,L Fischer,D Fox,A Franckowiak,A Fritz,P Fürst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon

Journal

Physical Review Letters

Published Date

2024/4/11

We report on a measurement of astrophysical tau neutrinos with 9.7 yr of IceCube data. Using convolutional neural networks trained on images derived from simulated events, seven candidate ν τ events were found with visible energies ranging from roughly 20 TeV to 1 PeV and a median expected parent ν τ energy of about 200 TeV. Considering backgrounds from astrophysical and atmospheric neutrinos, and muons from π±/K±decays in atmospheric air showers, we obtain a total estimated background of about 0.5 events, dominated by non-ν τ astrophysical neutrinos. Thus, we rule out the absence of astrophysical ν τ at the 5 σ level. The measured astrophysical ν τ flux is consistent with expectations based on previously published IceCube astrophysical neutrino flux measurements and neutrino oscillations.

VizieR Online Data Catalog: IceCube Event Catalog of Alert Tracks (ICECAT-1)(Abbasi+, 2023)

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Arguelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,AV Balagopal,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,S Benzvi,D Berley,E Bernardini,DZ Besson,G Binder,D Bindig,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Boser,O Botner,J Bottcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,P Dave,C de Clercq,JJ Delaunay,D Delgado,H Dembinski,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T Deyoung,A Diaz,JC Diaz-Velez,M Dittmer,A Domi,H Dujmovic,MA Duvernois,T Ehrhardt,P Eller,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Furst,TK Gaisser,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glusenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,S Griffin,S Griswold,C Gunther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,Minh M Ha,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,K Hoshina,W Hou,T Huber,K Hultqvist,M Hunnefeld,R Hussain,K Hymon

Journal

VizieR Online Data Catalog

Published Date

2024/2

We compile the neutrino alert catalog by applying the procedures of event selection described in Section 3 followed by likelihood scans on IceCube data going back to 2011 May.

Search for 10–1000 GeV Neutrinos from Gamma-Ray Bursts with IceCube

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,L Ausborm,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,J Braun,B Brinson,J Brostean-Kaiser,L Brusa,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,P Fürst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,JG Gonzalez,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Ha,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,M Handt,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,J Häußler,K Helbing,J Hellrung,J Hermannsgabner,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon

Journal

The Astrophysical Journal

Published Date

2024/3/22

We present the results of a search for 10–1000 GeV neutrinos from 2268 gamma-ray bursts (GRBs) over 8 yr of IceCube-DeepCore data. This work probes burst physics below the photosphere where electromagnetic radiation cannot escape. Neutrinos of tens of giga electronvolts are predicted in sub-photospheric collision of free-streaming neutrons with bulk-jet protons. In a first analysis, we searched for the most significant neutrino-GRB coincidence using six overlapping time windows centered on the prompt phase of each GRB. In a second analysis, we conducted a search for a group of GRBs, each individually too weak to be detectable, but potentially significant when combined. No evidence of neutrino emission is found for either analysis. The most significant neutrino coincidence is for Fermi-GBM GRB bn 140807500, with a p-value of 0.097 corrected for all trials. The binomial test used to search for a group of …

Citizen Science for IceCube: Name that Neutrino

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,L Ausborm,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,J Braun,B Brinson,J Brostean-Kaiser,L Brusa,RT Burley,RS Busse,D Butterfield,MA Campana,I Caracas,K Carloni,J Carpio,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,R Corley,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,L Draper,H Dujmovic,MA DuVernois,T Ehrhardt,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,P Fürst,J Gallagher,E Ganster,A Garcia,E Genton,L Gerhardt,A Ghadimi,C Girard-Carillo,C Glaser,T Glüsenkamp,JG Gonzalez,S Goswami,A Granados,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Ha,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,M Handt,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,J Häußler,K Helbing,J Hellrung,J Hermannsgabner,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina

Journal

arXiv preprint arXiv:2401.11994

Published Date

2024/1/22

Name that Neutrino is a citizen science project where volunteers aid in classification of events for the IceCube Neutrino Observatory, an immense particle detector at the geographic South Pole. From March 2023 to September 2023, volunteers did classifications of videos produced from simulated data of both neutrino signal and background interactions. Name that Neutrino obtained more than 128,000 classifications by over 1,800 registered volunteers that were compared to results obtained by a deep neural network machine-learning algorithm. Possible improvements for both Name that Neutrino and the deep neural network are discussed.

Search for Galactic Core-collapse Supernovae in a Decade of Data Taken with the IceCube Neutrino Observatory

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,A Fritz,P Fürst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain

Journal

The Astrophysical Journal

Published Date

2024/1/16

The IceCube Neutrino Observatory has been continuously taking data to search for

Search for Continuous and Transient Neutrino Emission Associated with IceCube’s Highest-energy Tracks: An 11 yr Analysis

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,S Coenders,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,A Fritz,P Fürst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon

Journal

The Astrophysical Journal

Published Date

2024/3/13

IceCube alert events are neutrinos with a moderate-to-high probability of having astrophysical origin. In this study, we analyze 11 yr of IceCube data and investigate 122 alert events and a selection of high-energy tracks detected between 2009 and the end of 2021. This high-energy event selection (alert events+ high-energy tracks) has an average probability of 0.5 of being of astrophysical origin. We search for additional continuous and transient neutrino emission within the high-energy events’ error regions. We find no evidence for significant continuous neutrino emission from any of the alert event directions. The only locally significant neutrino emission is the transient emission associated with the blazar TXS0506+ 056, with a local significance of 3σ, which confirms previous IceCube studies. When correcting for 122 test positions, the global p-value is 0.156 and compatible with the background hypothesis. We …

IceCube search for neutrinos coincident with gravitational wave events from LIGO/Virgo run O3

Authors

Rasha Abbasi,M Ackermann,J Adams,N Aggarwal,JA Aguilar,M Ahlers,M Ahrens,JM Alameddine,AA Alves,NM Amin,K Andeen,T Anderson,G Anton,C Argüelles,Y Asali,Y Ashida,S Athanasiadou,S Axani,X Bai,M Baricevic,I Bartos,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,S Benda,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,D Bindig,E Blaufuss,S Blot,F Bontempo,JY Book,J Borowka,S Böser,O Botner,J Böttcher,E Bourbeau,F Bradascio,J Braun,B Brinson,S Bron,J Brostean-Kaiser,RT Burley,RS Busse,MA Campana,EG Carnie-Bronca,C Chen,Z Chen,D Chirkin,K Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,ST Countryman,DF Cowen,R Cross,C Dappen,P Dave,C De Clercq,JJ DeLaunay,D Delgado López,H Dembinski,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,AT Fienberg,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Fürst,TK Gaisser,J Gallagher,E Ganster,A Garcia,S Garrappa,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,T Grégoire,S Griswold,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,S Hickford,C Hill,GC Hill,KD Hoffman,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon

Journal

The Astrophysical Journal

Published Date

2023/2/14

Using data from the IceCube Neutrino Observatory, we searched for high-energy neutrino emission from the gravitational-wave events detected by the advanced LIGO and Virgo detectors during their third observing run. We

Constraining High-energy Neutrino Emission from Supernovae with IceCube

Authors

Rasha Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,D Bindig,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado López,H Dembinski,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Fürst,TK Gaisser,J Gallagher,E Ganster,A Garcia,S Garrappa,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,S Griffin,S Griswold,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon,S In,N Iovine,A Ishihara,M Jacquart

Journal

The Astrophysical Journal Letters

Published Date

2023/5/22

Core-collapse supernovae are a promising potential high-energy neutrino source class. We test for correlation between seven years of IceCube neutrino data and a catalog containing more than 1000 core-collapse supernovae of types IIn and IIP and a sample of stripped-envelope supernovae. We search both for neutrino emission from individual supernovae as well as for combined emission from the whole supernova sample, through a stacking analysis. No significant spatial or temporal correlation of neutrinos with the cataloged supernovae was found. All scenarios were tested against the background expectation and together yield an overall p-value of 93%; therefore, they show consistency with the background only. The derived upper limits on the total energy emitted in neutrinos are 1.7× 1048 erg for stripped-envelope supernovae, 2.8× 1048 erg for type IIP, and 1.3× 1049 erg for type IIn SNe, the latter …

Electronics Design of the IceCube-Gen2 Optical Module Prototype

Authors

Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton

Published Date

2023

IceCube-Gen2 is a planned extension to the existing IceCube Neutrino Observatory and will provide an order of magnitude increase in the detection rate of cosmic neutrinos by deploying ~10,000 sensors in a volume of ~8 cubic kilometers. As part of the upcoming IceCube Upgrade, we are developing prototype IceCube-Gen2 sensors to test all components in-situ in preparation for mass production required for IceCube-Gen2. The novel IceCube-Gen2 module will contain up to eighteen 4-inch photomultiplier tubes (PMTs). The signals for each PMT are digitized with a 2-channel, 12-bit ADC (low- and high-gain) at a rate of 60 MSps. In addition, each module contains LED flashers for in-ice calibration, an FPGA for performing in-module local coincidence of PMT signals, and onboard SD flash memory for buffering data before it is sent to the surface. In this contribution, we discuss the electronics and data acquisition system design.

Three-year performance of the IceAct telescopes at the IceCube Neutrino Observatory

Authors

Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton

Published Date

2023

IceAct is an array of compact Imaging Air Cherenkov Telescopes at the ice surface as part of the IceCube Neutrino Observatory. The telescopes, featuring a camera of 61 silicon photomultipliers and fresnel-lens-based optics, are optimized to be operated in harsh environmental conditions, such as at the South Pole. Since 2019, the first two telescopes have been operating in a stereoscopic configuration in the center of IceCube's surface detector IceTop. With an energy threshold of about 10 TeV and a wide field-of-view, the IceAct telescopes show promising capabilities of improving current cosmic-ray composition studies: measuring the Cherenkov light emissions in the atmosphere adds new information about the shower development not accessible with the current detectors. First simulations indicate that the added information of a single telescope leads, e.g., to an improved discrimination between flux contributions from different primary particle species in the sensitive energy range.We review the performance and detector operations of the telescopes during the past 3 years (2020-2022) and give an outlook on the future of IceAct.

Search for sub-TeV Neutrino Emission from Novae with IceCube-DeepCore

Authors

R Abbasi,M Ackermann,J Adams,N Aggarwal,JA Aguilar,M Ahlers,JM Alameddine,AA Alves,NM Amin,K Andeen,T Anderson,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,D Bindig,E Blaufuss,S Blot,F Bontempo,JY Book,J Borowka,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,MA Campana,EG Carnie-Bronca,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,C Dappen,P Dave,C De Clercq,JJ DeLaunay,D Delgado López,H Dembinski,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,AT Fienberg,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Fürst,TK Gaisser,J Gallagher,E Ganster,A Garcia,S Garrappa,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,T Grégoire,S Griffin,S Griswold,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon,S In,N Iovine,A Ishihara

Journal

The Astrophysical Journal

Published Date

2023/8/14

The understanding of novae, the thermonuclear eruptions on the surfaces of white dwarf stars in binaries, has recently undergone a major paradigm shift. Though the bolometric luminosity of novae was long thought to arise directly from photons supplied by the thermonuclear runaway, recent gigaelectronvolt (GeV) gamma-ray observations have supported the notion that a significant portion of the luminosity could come from radiative shocks. More recently, observations of novae have lent evidence that these shocks are acceleration sites for hadrons for at least some types of novae. In this scenario, a flux of neutrinos may accompany the observed gamma rays. As the gamma rays from most novae have only been observed up to a few GeV, novae have previously not been considered as targets for neutrino telescopes, which are most sensitive at and above teraelectronvolt(TeV) energies. Here, we present the first …

IceCat-1: The IceCube Event Catalog of Alert Tracks

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,D Bindig,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,H Dembinski,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Fürst,TK Gaisser,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,S Griffin,S Griswold,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon,S In

Journal

The Astrophysical Journal Supplement Series

Published Date

2023/11/3

We present a catalog of likely astrophysical neutrino track-like events from the IceCube Neutrino Observatory. IceCube began reporting likely astrophysical neutrinos in 2016, and this system was updated in 2019. The catalog presented here includes events that were reported in real time since 2019, as well as events identified in archival data samples starting from 2011. We report 275 neutrino events from two selection channels as the first entries in the catalog, the IceCube Event Catalog of Alert Tracks, which will see ongoing extensions with additional alerts. The Gold and Bronze alert channels respectively provide neutrino candidates with a 50% and 30% probability of being astrophysical, on average assuming an astrophysical neutrino power-law energy spectral index of 2.19. For each neutrino alert, we provide the reconstructed energy, direction, false-alarm rate, probability of being astrophysical in origin, and …

An improved mapping of ice layer undulations for the IceCube Neutrino Observatory

Authors

Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton

Published Date

2023

A precise understanding of the optical properties of the instrumented Antarctic ice sheet is crucial to the performance of the IceCube Neutrino Observatory, a cubic-kilometer Cherenkov array of 5,160 digital optical modules (DOMs) deployed in the deep ice below the geographic South Pole.We present an update to the description of the ice tilt, which describes the undulation of layers of constant optical properties as a function of depth and transverse position in the detector. To date, tilt modeling has been based solely on stratigraphy measurements performed by a laser dust logger during the deployment of the array. We now show that it can independently be deduced using calibration data from LEDs located in the DOMs. The new fully volumetric tilt model not only confirms the magnitude of the tilt along the direction orthogonal to the ice flow obtained from prior dust logging, but also includes a newly discovered tilt component along the flow.

Highlights from the IceCube Neutrino Observatory

Authors

Naoko Kurahashi Neilson,Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton,Carlos Argüelles,Yosuke Ashida,Sofia Athanasiadou,Spencer Axani,Xinhua Bai,V Balagopal,Moreno Baricevic,Steve Barwick,Vedant Basu,Ryan Bay,James Beatty,Julia Becker Tjus,Jakob Beise,Chiara Bellenghi,Charlotte Benning,Segev BenZvi,David Berley,Elisa Bernardini,Dave Besson,Erik Blaufuss,Summer Blot,Federico Bontempo,Julia Book,Caterina Boscolo Meneguolo,Sebastian Boser,Olga Botner,Jakob Bottcher,Etienne Bourbeau,Jim Braun,Bennett Brinson,Jannes Brostean-Kaiser,Ryan T Burley,Raffaela Busse,Delaney Butterfield,Michael Campana,Kiara Carloni,Erin Carnie-Bronca,Sharmistha Chattopadhyay,Thien Nhan Chau,Chujie Chen,Zheyang Chen,Dmitry Chirkin,Seowon Choi,Brian Clark,Lew Classen,Alan Coleman,Gabriel Collin,Amy Connolly,Janet Conrad,Paul Coppin,Doug Cowen,Pranav Dave,Catherine De Clercq,James DeLaunay,Diyaselis Delgado Lopez,Shuyang Deng,Kunal Deoskar,Abhishek Desai,Paolo Desiati,Krijn De Vries,Gwenhaël De Wasseige,Tyce DeYoung,Alejandro Diaz,Juan Carlos Diaz-Velez,Markus Dittmer,Alba Domi,Hrvoje Dujmovic,Michael DuVernois,Thomas Ehrhardt,Philipp Eller,Enrico Ellinger,Sharif El Mentawi,Dominik Elsässer,Ralph Engel,Hannah Erpenbeck,John Evans,Paul Evenson,Kwok Lung Fan,Ke Fang,Kareem Ramadan Farrag,Ali Fazely,Anatoli Fedynitch,Nora Feigl,Sebastian Fiedlschuster,Chad Finley,Leander Fischer,Derek B Fox,Anna Franckowiak,Alexander Fritz,Philipp Furst,Jay Gallagher,Erik Ganster,Alfonso Garcia,Lisa Gerhardt,Ava Ghadimi,Christian Glaser,Theo Glauch,Thorsten Glüsenkamp,Noah Goehlke,Javier Gonzalez,Sreetama Goswami,Darren Grant,Shannon Gray,Oliver Gries,Sean Griffin,Spencer Griswold,Kathrine Morch Groth,Christoph Günther,Pascal Gutjahr,Christian Haack,Allan Hallgren,Robert Halliday,Lasse Halve,Francis Halzen,Hassane Hamdaoui,Martin Ha Minh,Kael Hanson,John Hardin,Alexander Harnisch,Patrick Hatch,Andreas Haungs,Klaus Helbing,Jonas Hellrung,Felix Henningsen,Lars Philipp Heuermann,Nils Heyer,Stephanie Hickford,Attila Hidvegi,Colton Hill,Gary Hill,Kara Hoffman,Sam Hori,Kotoyo Hoshina,Wenjie Hou,Thomas Huber,Klas Hultqvist,Mirco Hunnefeld,Raamis Hussain,Karolin Hymon

Journal

38th International Cosmic Ray Conference (ICRC2023): Highlight Talks

Published Date

2023

As IceCube surpasses a decade of operation in the full detector configuration, results that drive forward the fields of neutrino astronomy, cosmic ray physics, multi-messenger astronomy, particle physics, and beyond continue to emerge at an accelerated pace. IceCube data is dominated by background events, and thus teasing out the signal is the common challenge to most analyses. Statistical accumulation of data, along with better understanding of the background fluxes, the detector, and continued development of our analysis tools have produced many profound results that were presented at ICRC2023. Highlights covered here include the first neutrino observation of the Galactic Plane, the first observation of a steady emission neutrino point source NGC1068, new characterizations of the cosmic ray flux and its secondary particles, and a possible new era in measuring the energy spectrum of the diffuse …

Angular dependence of the atmospheric neutrino flux with IceCube data

Authors

Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton

Published Date

2023

IceCube Neutrino Observatory, the cubic kilometer detector embedded in ice of the geographicSouth Pole, is capable of detecting particles from several GeV up to PeV energies enabling precise neutrino spectrum measurement. The diffuse neutrino flux can be subdivided into three components: astrophysical, from extraterrestrial sources; conventional, from pion and kaon decays in atmospheric Cosmic Ray cascades; and the yet undetected prompt component from the decay of charmed hadrons. A particular focus of this work is to test the predicted angular dependence of the atmospheric neutrino flux using an unfolding method. Unfolding is a set of methods aimed atdetermining a value from related quantities in a model-independent way, eliminating the influence of several assumptions made in the process. In this work, we unfold the muon neutrino energy spectrum and employ a novel technique for rebinning the observable space to ensure sufficientevent numbers within the low statistic region at the highest energies. We present the unfolded energy and zenith angle spectrum reconstructed from IceCube data and compare the result with model expectations and previous measurements.

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