Malte Albrecht
Ruhr-Universität Bochum
H-index: 64
Europe-Germany
About Malte Albrecht
Malte Albrecht, With an exceptional h-index of 64 and a recent h-index of 55 (since 2020), a distinguished researcher at Ruhr-Universität Bochum, specializes in the field of Hadron spectroscopy, particle physics.
His recent articles reflect a diverse array of research interests and contributions to the field:
Observation of decays to and
Observations of the Cabibbo-Suppressed decays, and the Cabibbo-Favored decay
Evidence for the decay
Search for Baryon-Number-Violating Oscillations in the Decay
Measurement of from 3.5106 to 4.6988 GeV and study of mass threshold enhancement
Measurement of the absolute branching fraction of the inclusive decay
Observation of e+ e−→ π0π0ψ2 (3823)
Search for the weak decay
Malte Albrecht Information
University | Ruhr-Universität Bochum |
|---|---|
Position | PostDoc |
Citations(all) | 15534 |
Citations(since 2020) | 12359 |
Cited By | 6415 |
hIndex(all) | 64 |
hIndex(since 2020) | 55 |
i10Index(all) | 302 |
i10Index(since 2020) | 285 |
University Profile Page | Ruhr-Universität Bochum |
Malte Albrecht Skills & Research Interests
Hadron spectroscopy
particle physics
Top articles of Malte Albrecht
Observation of decays to and
Authors
M Ablikim,MN Achasov,P Adlarson,S Ahmed,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,XH Bai,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,DY Chen,G Chen,HS Chen,ML Chen,SJ Chen,XR Chen,YB Chen,ZJ Chen,WS Cheng,G Cibinetto,F Cossio,XF Cui,HL Dai,JP Dai,XC Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,C Dong,J Dong,LY Dong,MY Dong,X Dong,SX Du,YL Fan,J Fang,SS Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,M Fritsch,CD Fu,Y Gao,YG Gao,I Garzia,PT Ge,C Geng,EM Gersabeck,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,S Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,H Hüsken,KL He,FH Heinsius,CH Heinz,T Held,YK Heng,C Herold,M Himmelreich,T Holtmann,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,W Ikegami Andersson,W Imoehl,M Irshad,S Jaeger,S Janchiv,Q Ji,QP Ji,XB Ji,XL Ji,HB Jiang,XS Jiang,JB Jiao,Z Jiao,S Jin,Y Jin,T Johansson,N Kalantar-Nayestanaki,XS Kang,R Kappert,M Kavatsyuk,BC Ke,IK Keshk,A Khoukaz,P Kiese,R Kiuchi,R Kliemt,L Koch,OB Kolcu,B Kopf,M Kuemmel
Journal
Physical Review D
Published Date
2024/3/18
Using a data sample of 4.481× 10 8 ψ (3686) events collected with the BESIII detector, we report the first observation of the four-lepton-decays J/ψ→ e+ e− e+ e− and J/ψ→ e+ e− μ+ μ− utilizing the process ψ (3686)→ π+ π− J/ψ. The branching fractions are determined to be [5.48±0.31 (stat)±0.45 (syst)]× 10− 5 and [3.53±0.22 (stat)±0.13 (syst)]× 10− 5, respectively. The results are consistent with theoretical predictions. No significant signal is observed for J/ψ→ μ+ μ− μ+ μ−, and an upper limit on the branching fraction is set at 1.6× 10− 6 at the 90% confidence level. A C P asymmetry observable is constructed for the first two channels, which is measured to be (− 0.012±0.054±0.010) and (0.062±0.059±0.006), respectively. No evidence for C P violation is observed in this process.
Observations of the Cabibbo-Suppressed decays, and the Cabibbo-Favored decay
Authors
Medina Ablikim,Mikhail N Achasov,P Adlarson,Malte Albrecht,Riccardo Aliberti,Antonio Amoroso,MR An,Qi An,Yu Bai,Olga Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,E Bianco,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,GR Che,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,ZH Duan,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,SS Jiang,XS Jiang,Y Jiang
Journal
Chinese Physics C
Published Date
2023/2/1
CD Fu (傅成栋) 1 H. Gao (高涵) 58 YN Gao (高原宁) 42, g Yang Gao (高扬) 53, 66 S. Garbolino69C I. Garzia27A, 27B PT Ge (葛潘婷) 71 ZW Ge (葛振武) 38 C. Geng (耿聪) 54 EM Gersabeck62 A Gilman64 K. Goetzen12 L. Gong (龚丽) 36 WX Gong (龚文煊) 1, 53 W. Gradl31 M. Greco69A, 69C LM Gu (谷立民) 38 MH Gu (顾旻皓) 1, 53
Evidence for the decay
Authors
M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,E Bianco,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,GR Che,Chao Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,ZH Duan,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,SS Jiang,XS Jiang,Y Jiang
Journal
Physical Review D
Published Date
2023/3/17
The decay η c (2 S)→ π+ π− η is searched for through the radiative transition ψ (3686)→ γ η c (2 S) using 448 million ψ (3686) events accumulated at the BESIII detector. The first evidence of η c (2 S)→ π+ π− η is found with a statistical significance of 3.5 σ. The product of the branching fractions of ψ (3686)→ γ η c (2 S) and η c (2 S)→ π+ π− η is measured to be Br (ψ (3686)→ γ η c (2 S))× Br (η c (2 S)→ π+ π− η)=(2.97±0.81±0.26)× 10− 6, where the first uncertainty is statistical and the second one is systematic. The branching fraction of the decay η c (2 S)→ π+ π− η is determined to be Br (η c (2 S)→ π+ π− η)=(42.4±11.6±3.8±30.3)× 10− 4, where the third uncertainty is transferred from the uncertainty of the branching fraction of ψ (3686)→ γ η c (2 S).
Search for Baryon-Number-Violating Oscillations in the Decay
Authors
Medina Ablikim,Mikhail N Achasov,P Adlarson,S Ahmed,Malte Albrecht,Riccardo Aliberti,Antonio Amoroso,Qi An,Yu Bai,Olga Bakina,R Baldini Ferroli,I Balossino,Y Ban,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,G Chen,HS Chen,ML Chen,SJ Chen,XR Chen,YB Chen,ZJ Chen,WS Cheng,G Cibinetto,F Cossio,HL Dai,JP Dai,XC Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,J Fang,SS Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,M Fritsch,CD Fu,YN Gao,Ya Gao,Yang Gao,I Garzia,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,S Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,XQ Hao,FA Harris,KL He,FHH Heinsius,CH Heinz,YK Heng,C Herold,M Himmelreich,T Holtmann,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,LQ Huang,XT Huang,YP Huang,T Hussain,W Imoehl,M Irshad,S Jaeger,S Janchiv,Q Ji,QP Ji,XB Ji,XL Ji,XS Jiang,JB Jiao,Z Jiao,S Jin,Y Jin,T Johansson,N Kalantar-Nayestanaki,XS Kang,R Kappert,M Kavatsyuk,BC Ke,IK Keshk,A Khoukaz,P Kiese,R Kiuchi,R Kliemt,OB Kolcu,B Kopf,M Kuemmel,MK Kuessner,A Kupsc,MG Kurth,W Kühn,JJ Lane,P Larin,A Lavania,L Lavezzi,ZH Lei,H Leithoff,M Lellmann,T Lenz,C Li,CH Li
Journal
Physical review letters
Published Date
2023/9/19
We report on the first search for Λ− Λ oscillations in the decay J/ψ→ p K− Λ+ c. c. by analyzing 1.31× 10 9 J/ψ events accumulated with the BESIII detector at the BEPCII collider. The J/ψ events are produced using e+ e− collisions at a center of mass energy s= 3.097 GeV. No evidence for hyperon oscillations is observed. The upper limit for the oscillation rate of Λto Λ hyperons is determined to be P (Λ)=[B (J/ψ→ p K− Λ+ c. c.)/B (J/ψ→ p K− Λ+ c. c.)]< 4.4× 10− 6 corresponding to an oscillation parameter δ m Λ Λof less than 3.8× 10− 18 GeV at the 90% confidence level.
Measurement of from 3.5106 to 4.6988 GeV and study of mass threshold enhancement
Authors
Wei Xu,M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,E Bianco,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,GR Che,Chao Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,ZH Duan,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,PC Jiang,SS Jiang
Journal
Physical Review D
Published Date
2023/6/1
Using data samples with a total integrated luminosity of approximately 18 fb− 1 collected by the BESIII detector operating at the Beijing Electron-Positron Collider II, the process e+ e−→ Λ Λη is studied at center-of-mass energies between 3.5106 and 4.6988 GeV. The Born cross section for the process e+ e−→ Λ Λη is measured. No significant structure is observed in the Born cross section line shape. An enhancement near the Λ Λmass threshold is observed for the first time in the process. The structure can be described by an S-wave Breit-Wigner function. Neglecting contribution of excited Λ states and potential interferences, the mass and width are determined to be (2356±7±15) MeV/c 2 and (304±28±54) MeV, respectively, where the first uncertainties are statistical and the second are systematic.
Measurement of the absolute branching fraction of the inclusive decay
Authors
Medina Ablikim,Mikhail N Achasov,S Ahmed,Malte Albrecht,Maxim Alekseev,Antonio Amoroso,FF An,Qi An,JZ Bai,Y Bai,O Bakina,R Baldini Ferroli,Y Ban,DW Bennett,JV Bennett,N Berger,M Bertani,D Bettoni,JM Bian,F Bianchi,E Boger,I Boyko,RA Briere,H Cai,X Cai,O Cakir,A Calcaterra,GF Cao,SA Cetin,J Chai,JF Chang,G Chen,HS Chen,JC Chen,ML Chen,PL Chen,SJ Chen,XR Chen,YB Chen,XK Chu,G Cibinetto,HL Dai,JP Dai,A Dbeyssi,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,C Dong,J Dong,LY Dong,MY Dong,ZL Dou,SX Du,PF Duan,J Fang,SS Fang,Y Fang,R Farinelli,L Fava,S Fegan,F Feldbauer,G Felici,CQ Feng,E Fioravanti,M Fritsch,CD Fu,Q Gao,XL Gao,Y Gao,YG Gao,Z Gao,B Garillon,I Garzia,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,MH Gu,YT Gu,AQ Guo,RP Guo,YP Guo,Z Haddadi,S Han,XQ Hao,FA Harris,KL He,XQ He,FH Heinsius,T Held,YK Heng,T Holtmann,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,JS Huang,XT Huang,XZ Huang,ZL Huang,T Hussain,W Ikegami Andersson,Q Ji,QP Ji,XB Ji,XL Ji,XS Jiang,XY Jiang,JB Jiao,Z Jiao,DP Jin,S Jin,Y Jin,T Johansson,A Julin,N Kalantar-Nayestanaki,XL Kang,XS Kang,M Kavatsyuk,BC Ke,T Khan,A Khoukaz,P Kiese,R Kliemt,L Koch,OB Kolcu,B Kopf,M Kornicer,M Kuemmel,M Kuessner,M Kuhlmann,A Kupsc,W Kühn,JS Lange,M Lara,P Larin,L Lavezzi,H Leithoff,C Leng,Cheng Li,Cheng Li,DM Li,F Li
Journal
Physical Review Letters
Published Date
2018/12/18
Using a data sample of e+ e− collisions corresponding to an integrated luminosity of 567 pb− 1 collected at a center-of-mass energy of s= 4.6 GeV with the BESIII detector, we measure the absolute branching fraction of the inclusive semileptonic Λ c+ decay with a double-tag method. We obtain B (Λ c+→ X e+ ν e)=(3.95±0.34±0.09)%, where the first uncertainty is statistical and the second systematic. Using the known Λ c+ lifetime and the charge-averaged semileptonic decay width of nonstrange charmed mesons (D 0 and D+), we obtain the ratio of the inclusive semileptonic decay widths Γ (Λ c+→ X e+ ν e)/Γ (D→ X e+ ν e)= 1.26±0.12.
Observation of e+ e−→ π0π0ψ2 (3823)
Authors
M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,XH Bai,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,GR Che,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang,XS Jiang
Journal
Journal of High Energy Physics
Published Date
2023/2
Using a data sample corresponding to an integrated luminosity of 11.3 fb− 1 collected at center-of-mass energies from 4.23 to 4.70 GeV with the BESIII detector, we observe the process e+ e−→ π 0 π 0 ψ 2 (3823) for the first time with a statistical significance of 6. 0 standard deviations. The ratio of average cross sections for e+ e−→ π 0 π 0 ψ 2 (3823) and π+ π− ψ 2 (3823) is determined to be, which is consistent with expectations from isospin symmetry. Here and below, the first uncertainties are statistical and the second are systematic. The mass of the ψ 2 (3823) is measured to be M [ψ 2 (3823)]= 3824. 5±2. 4±1. 0 MeV/c 2. Due to the limited data sample, an upper limit of 18.8 MeV at 90% confidence level is set on the intrinsic width of ψ 2 (3823).
Search for the weak decay
Authors
Medina Ablikim,Mikhail N Achasov,P Adlarson,Malte Albrecht,Riccardo Aliberti,Antonio Amoroso,MR An,Qi An,XH Bai,Yu Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,M Himmelreich,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang,XS Jiang,Y Jiang,JB Jiao,Z Jiao
Journal
Chinese Physics C
Published Date
2023
HM Hu (胡海明) 1, 58 JF Hu51, i T. Hu (胡涛) 1 Y. Hu (胡誉) 1 GS Huang (黄光顺) 53, 66 KX Huang (黄凯旋) 54 LQ Huang (黄麟钦) 67 LQ Huang (黄麟钦) 28, 58 XT Huang (黄性涛) 45 YP Huang (黄燕萍) 1 Z. Huang (黄震) 42, g T. Hussain68 N Hüsken25, 31 W. Imoehl25 M. Irshad53, 66 J. Jackson25 S. Jaeger4 S. Janchiv29 Q. Ji (纪全) 1
Measurement of branching fraction of relative to
Authors
M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,XH Bai,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,Chao Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang,XS Jiang,Y Jiang
Journal
Physical Review D
Published Date
2023/2/27
Based on 7.33 fb− 1 of e+ e− collision data taken at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we measure the branching fraction of D s*+→ D s+ π 0 relative to that of D s*+→ D s+ γ to be (6.16±0.43±0.18)%. The first uncertainty is statistical and the second one is systematic. By using the world average value of the branching fraction of D s*+→ D s+ e+ e−, we determine the branching fractions of D s*+→ D s+ γ and D s*+→ D s+ π 0 to be (93.57±0.38±0.22)% and (5.76±0.38±0.16)%, respectively.
Search for the weak radiative decay at BESIII
Authors
M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,XH Bai,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang,XS Jiang,Y Jiang
Journal
Physical Review D
Published Date
2023/3/8
The Cabibbo-allowed weak radiative decay Λ c+→ Σ+ γ has been searched for in a sample of Λ c+ Λc− pairs produced in e+ e− annihilations, corresponding to an integrated luminosity of 4.5 fb− 1 collected with the BESIII detector at center-of-mass energies between 4.60 and 4.70 GeV. No excess of signal above background is observed, and we set an upper limit on the branching fraction of this decay to be B (Λ c+→ Σ+ γ)< 4.4× 10− 4 at a confidence level of 90%, which is in agreement with Standard Model expectations.
Novel method to extract the femtometer structure of strange baryons using the vacuum polarization effect
Authors
M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,E Bianco,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,GR Che,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,ZH Duan,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,PC Jiang,SS Jiang,XS Jiang
Journal
arXiv preprint arXiv:2309.04139
Published Date
2023/9/8
One of the fundamental goals of particle physics is to gain microscopic understanding of the strong interaction. Electromagnetic form factors quantify the structure of hadrons in terms of charge and magnetization distributions. While the nucleon structure has been investigated extensively, data on hyperons is still scarce. It has recently been demonstrated that electron-positron annihilations into hyperon-antihyperon pairs provide a powerful tools to investigate their inner structure. We present a novel method useful for hyperon-antihyperon pairs of different types which exploits the cross section enhancement due to the vacuum polarization effect at the resonance. Using the 10 billion events collected with the BESIII detector, this allows a thorough determination of the hyperon structure . The result is essentially a precise snapshot of a ~() pair in the making, encoded in the form factor ratio and the phase. Their values are measured to be , $\Delta\Phi_1=(1.011\pm0.094({\rm stat.})\pm0.010({\rm syst.}))~\rm rad$ for and $\Delta\Phi_2=(2.128\pm0.094({\rm stat.})\pm0.010({\rm syst.}))~\rm rad$ for , respectively. Furthermore, charge-parity (CP) breaking is investigated for the first time in this reaction and found to be consistent with CP symmetry.
Search for invisible decays of a dark photon using e+ e− annihilation data at BESIII
Authors
Medina Ablikim,Mikhail N Achasov,P Adlarson,Malte Albrecht,Riccardo Aliberti,Antonio Amoroso,MR An,Qi An,XH Bai,Yu Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,SC Coen,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,M Himmelreich,T Holtmann,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang
Journal
Physics Letters B
Published Date
2023/4/10
We report a search for a dark photon using 14.9 fb− 1 of e+ e− annihilation data taken at center-of-mass energies from 4.13 to 4.60 GeV with the BESIII detector operated at the BEPCII storage ring. The dark photon is assumed to be produced in the radiative annihilation process of e+ e− and to predominantly decay into light dark matter particles, which escape from the detector undetected. The mass range from 1.5 to 2.9 GeV is scanned for the dark photon candidate, and no significant signal is observed. The mass dependent upper limits at the 90% confidence level on the coupling strength parameter ϵ for a dark photon coupling with an ordinary photon vary between 1.6× 10− 3 and 5.7× 10− 3.
Improved measurement of the branching fractions of the inclusive decays and
Authors
M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,E Bianco,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,GR Che,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,ZH Duan,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,PC Jiang,SS Jiang,XS Jiang
Journal
Physical Review D
Published Date
2023/6/15
By analyzing 2.93 fb− 1 of e+ e− collision data taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, the branching fractions of the inclusive decays D+→ K S 0 X and D 0→ K S 0 X are measured to be (33.11±0.13±0.36)% and (20.75±0.12±0.20)%, respectively, where the first uncertainties are statistical and the second are systematic. These results are consistent with the world averages of previous measurements, but with much improved precision.
Search for the lepton flavor violating decay J/ψ → eμ
Authors
BESIII Collaboration besiii-publications@ ihep. ac. cn,M Ablikim,MN Achasov,P Adlarson,M Albrecht,R Aliberti,A Amoroso,MR An,Q An,XH Bai,Y Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,G Chelkov,Chao Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,M Himmelreich,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang,XS Jiang
Journal
Science China Physics, Mechanics & Astronomy
Published Date
2023/2
We present a search for the lepton flavor violating decay J/ψ → e±μ∓ using 8.998 × 109J/ψ events collected with the BESIII detector at the BEPCII e+e− storage ring. No excess of signal above background is observed; we therefore set an upper limit on the branching fraction of at the 90% confidence level. Improving the previous best result by a factor of more than 30, this measurement places the most stringent limit to date on lepton flavor violation in the heavy quarkonium sector.
Observation of
Authors
M Ablikim,MN Achasov,P Adlarson,S Ahmed,M Albrecht,M Alekseev,A Amoroso,FF An,Q An,Y Bai,O Bakina,R Baldini Ferroli,Y Ban,K Begzsuren,JV Bennett,N Berger,M Bertani,D Bettoni,F Bianchi,J Biernat,J Bloms,I Boyko,RA Briere,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,J Chai,JF Chang,WL Chang,DY Chen,G Chen,HS Chen,JC Chen,ML Chen,SJ Chen,YB Chen,W Cheng,G Cibinetto,F Cossio,XF Cui,HL Dai,JP Dai,XC Dai,A Dbeyssi,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,C Dong,J Dong,LY Dong,MY Dong,ZL Dou,SX Du,JZ Fan,J Fang,SS Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,M Fritsch,CD Fu,Y Fu,Q Gao,XL Gao,Y Gao,YG Gao,Z Gao,B Garillon,I Garzia,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,S Gu,YT Gu,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,S Han,XQ Hao,FA Harris,KL He,FH Heinsius,T Held,YK Heng,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,JS Huang,XT Huang,XZ Huang,ZL Huang,N Huesken,T Hussain,W Ikegami Andersson,W Imoehl,M Irshad,Q Ji,QP Ji,XB Ji,XL Ji,HL Jiang,XS Jiang,XY Jiang,JB Jiao,Z Jiao,DP Jin,S Jin,Y Jin,T Johansson,N Kalantar-Nayestanaki,XS Kang,R Kappert,M Kavatsyuk,BC Ke,IK Keshk,T Khan,A Khoukaz,P Kiese,R Kiuchi,R Kliemt,L Koch,OB Kolcu,B Kopf,M Kuemmel,M Kuessner,A Kupsc,M Kurth,MG Kurth
Journal
Physical Review D
Published Date
2019/6/27
Using a data sample of 4.48× 10 8 ψ (3686) events collected with the BESIII detector, we present a first observation of ψ (3686)→ p p ϕ, and we measure its branching fraction to be [6.06±0.38 (stat)±0.48 (syst)]× 10− 6. In contrast to the earlier discovery of a threshold enhancement in the p p-mass spectrum of the channel J/ψ→ γ p p, denoted as X (p p), we do not find a similar enhancement in ψ (3686)→ p p ϕ. An upper limit of 1.82× 10− 7 at the 90% confidence level on the branching fraction of ψ (3686)→ X (p p) ϕ→ p p ϕ is obtained.
Evidence for the Cusp Effect in Decays into
Authors
Medina Ablikim,Mikhail N Achasov,P Adlarson,Malte Albrecht,Riccardo Aliberti,Antonio Amoroso,MR An,Qi An,XH Bai,Yu Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,C Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE De Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,M Himmelreich,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang,XS Jiang,Y Jiang,JB Jiao,Z Jiao
Journal
Physical Review Letters
Published Date
2023/2/24
Using a sample of 4.3× 10 5 η′→ η π 0 π 0 events selected from the ten billion J/ψ event dataset collected with the BESIII detector, we study the decay η′→ η π 0 π 0 within the framework of nonrelativistic effective field theory. Evidence for a structure at π+ π− mass threshold is observed in the invariant mass spectrum of π 0 π 0 with a statistical significance of around 3.5 σ, which is consistent with the cusp effect as predicted by the nonrelativistic effective field theory. After introducing the amplitude for describing the cusp effect, the π π scattering length combination a 0− a 2 is determined to be 0.226±0.06 0 stat±0.01 3 syst, which is in good agreement with theoretical calculation of 0.2644±0.0051.
Amplitude analysis and branching fraction measurement of the decay D+→ π+ π0π0
Authors
M Kuemmel,MX Luo,FF Sui,XR Zhou,JB Liu,T Hussain,T Held,XH Sun,M Kuessner,FH Heinsius,JY Zhang,LY Dong,L Xia,T Li,JH Yin,SF Zhang,X Tang,M Qi,S Lusso,Y Hu,XK Zhou,SL Olsen,Ling Zhao,G Mezzadri,YM Ma,LH Wu,YF Long,WL Chang,M Rolo,S Zhu,A Mangoni,XS Jiang,QP Ji,JY Liu,A Zhemchugov,L Yan,K Goetzen,JL Zhang,K Peters,A Rivetti,HP Peng,WX Gong,YG Gao,M Kornicer,XR Lyu,MH Gu,RP Guo,XT Huang,M Wang,S Pacetti,B Zheng,FC Ma,SB Liu,BS Zou,I Boyko,M Destefanis,SX Du,ZQ Yang,Fang Liu,M Albrecht,D Wang,MN Achasov,XS Qin,JZ Zhang,Cheng Li,Ke Liu,A Kupsc,Q Gao,B Liu,F Cossio,SA Cetin,Y Ban,SJ Chen,JS Lange,YB Liu,T Weber,BY Zhang,YT Tan,YZ Sun,Q Zhou,U Wiedner,YK Heng,W Shan,KL He,T Hu,ZX Meng,HY Sheng,LS Wang,X Xia,C Dong,J Pellegrino,Z Jiao,LL Ma,ZH Qin,RG Ping,WD Li,X Shi,DP Jin,G Rong,D Bettoni,WM Song,CD Fu,S Marcello,YH Yang,Z Ning,J Pettersson,KY Liu,Z Haddadi,A Calcaterra,Feng Liu,N Yu Muchnoi,CF Redmer,M Richter,HM Liu,L Zhou,N Berger,I Uman,MH Ye,S Sosio,HH Wang,YT Gu,I Garzia,XY Niu,CX Yu,Huihui Liu,Q An,JQ Zhang,CJ Tang,A Denig,J Zhang,YB Zhao,D Dedovich,J Libby,L Xu,OB Kolcu,YS Zhu,IK Keshk,S Han,XY Ma,XZ Huang,YT Zhang,HB Li,A Guskov,SH Zhu,N Qin,DM Li,QL Xiu,TJ Zhang,M Tiemens,M Shao
Journal
Physical Review D
Published Date
2019/5/31
Home> Physical Review D (APS)> Amplitude analysis and branching fraction measurement of< mrow>< msup>< mrow>< mi> D< mrow>< mn> 0< mo>→< msup>< mrow>< mi> K< mrow>< mo>−< msup>< mrow>< mi> π< mrow>< mo>+< msup>< mrow>< mi> π< mrow>< mn> 0< msup>< mrow>< mi> π< mrow>< mn> 0
Observation of the decay
Authors
M Ablikim,MN Achasov,S Ahmed,M Albrecht,M Alekseev,A Amoroso,FF An,Q An,Y Bai,O Bakina,R Baldini Ferroli,Y Ban,K Begzsuren,JV Bennett,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,I Boyko,RA Briere,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,J Chai,JF Chang,WL Chang,DY Chen,G Chen,HS Chen,JC Chen,ML Chen,SJ Chen,YB Chen,W Cheng,G Cibinetto,F Cossio,XF Cui,HL Dai,JP Dai,XC Dai,A Dbeyssi,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,C Dong,J Dong,LY Dong,MY Dong,ZL Dou,SX Du,JZ Fan,J Fang,SS Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,M Fritsch,CD Fu,Y Fu,Q Gao,XL Gao,Y Gao,YG Gao,Z Gao,B Garillon,I Garzia,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,S Gu,YT Gu,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,S Han,XQ Hao,FA Harris,KL He,FH Heinsius,T Held,YK Heng,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,JS Huang,XT Huang,XZ Huang,N Huesken,T Hussain,W Ikegami Andersson,W Imoehl,M Irshad,Q Ji,QP Ji,XB Ji,XL Ji,HL Jiang,XS Jiang,XY Jiang,JB Jiao,Z Jiao,DP Jin,S Jin,Y Jin,T Johansson,N Kalantar-Nayestanaki,XS Kang,R Kappert,M Kavatsyuk,BC Ke,IK Keshk,T Khan,A Khoukaz,P Kiese,R Kiuchi,R Kliemt,L Koch,OB Kolcu,B Kopf,M Kuemmel,M Kuessner,A Kupsc,M Kurth,MG Kurth,W Kühn,JS Lange,P Larin,L Lavezzi
Journal
Physical review letters
Published Date
2019/5/23
Using a total of 9.0 fb− 1 of e+ e− collision data with center-of-mass energies between 4.15 and 4.30 GeV collected by the BESIII detector, we search for the processes e+ e−→ γ X (3872) with X (3872)→ π 0 χ c J for J= 0, 1, 2. We report the first observation of X (3872)→ π 0 χ c 1, a new decay mode of the X (3872), with a statistical significance of more than 5 σ for all systematic fit variations. Normalizing to the previously established process e+ e−→ γ X (3872) with X (3872)→ π+ π− J/ψ, we find B (X (3872)→ π 0 χ c 1)/B (X (3872)→ π+ π− J/ψ)= 0.8 8− 0.27+ 0.33±0.10, where the first error is statistical and the second is systematic. We set 90% confidence level upper limits on the corresponding ratios for the decays to π 0 χ c 0 and π 0 χ c 2 of 19 and 1.1, respectively.
Study of at center-of-mass energies from 3.49 to 3.67 GeV
Authors
Medina Ablikim,Mikhail N Achasov,P Adlarson,Malte Albrecht,Riccardo Aliberti,Antonio Amoroso,MR An,Qi An,XH Bai,Yu Bai,O Bakina,R Baldini Ferroli,I Balossino,Y Ban,V Batozskaya,D Becker,K Begzsuren,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,A Bortone,I Boyko,RA Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,JF Chang,WL Chang,Chao Chen,Chao Chen,G Chen,HS Chen,ML Chen,SJ Chen,SM Chen,T Chen,XR Chen,XT Chen,YB Chen,ZJ Chen,WS Cheng,SK Choi,X Chu,G Cibinetto,F Cossio,JJ Cui,HL Dai,JP Dai,A Dbeyssi,RE de Boer,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,J Dong,LY Dong,MY Dong,X Dong,SX Du,P Egorov,YL Fan,J Fang,SS Fang,WX Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,JH Feng,K Fischer,M Fritsch,C Fritzsch,CD Fu,H Gao,YN Gao,Yang Gao,S Garbolino,I Garzia,PT Ge,ZW Ge,C Geng,EM Gersabeck,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,YT Gu,CY Guan,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,TT Han,WY Han,XQ Hao,FA Harris,KK He,KL He,FH Heinsius,CH Heinz,YK Heng,C Herold,M Himmelreich,GY Hou,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,KX Huang,LQ Huang,XT Huang,YP Huang,Z Huang,T Hussain,N Hüsken,W Imoehl,M Irshad,J Jackson,S Jaeger,S Janchiv,E Jang,JH Jeong,Q Ji,QP Ji,XB Ji,XL Ji,YY Ji,ZK Jia,HB Jiang,SS Jiang,XS Jiang
Journal
Physical Review D
Published Date
2023/3/8
Using data samples of e+ e− collisions collected with the BESIII detector at eight center-of-mass energy points between 3.49 and 3.67 GeV, corresponding to an integrated luminosity of 670 pb− 1, we present the upper limits of Born cross sections and the effective form factor for the process e+ e−→ Ω− Ω+. A fit to the cross sections using a perturbative QCD-derived energy-dependent function shows no significant threshold effect. The upper limit on the measured effective form factor is consistent with a theoretical prediction within the uncertainty of 1 σ. These results provide new experimental information on the production mechanism of Ω.
Strong interaction physics at the luminosity frontier with 22 GeV electrons at Jefferson lab
Authors
A Accardi,P Achenbach,D Adhikari,A Afanasev,CS Akondi,N Akopov,M Albaladejo,H Albataineh,M Albrecht,B Almeida-Zamora,M Amaryan,D Androić,W Armstrong,DS Armstrong,M Arratia,J Arrington,A Asaturyan,A Austregesilo,H Avagyan,T Averett,C Ayerbe Gayoso,A Bacchetta,AB Balantekin,N Baltzell,L Barion,PC Barry,A Bashir,M Battaglieri,V Bellini,I Belov,O Benhar,B Benkel,F Benmokhtar,W Bentz,V Bertone,H Bhatt,A Bianconi,L Bibrzycki,R Bijker,D Binosi,D Biswas,M Boër,W Boeglin,SA Bogacz,M Boglione,M Bondí,EE Boos,P Bosted,G Bozzi,EJ Brash,RA Briceño,PD Brindza,WJ Briscoe,SJ Brodsky,WK Brooks,VD Burkert,A Camsonne,T Cao,LS Cardman,DS Carman,M Carpinelli,GD Cates,J Caylor,A Celentano,FG Celiberto,M Cerutti,Lei Chang,P Chatagnon,C Chen,JP Chen,T Chetry,A Christopher,E Chudakov,E Cisbani,IC Cloët,JJ Cobos-Martinez,EO Cohen,P Colangelo,PL Cole,M Constantinou,M Contalbrigo,G Costantini,W Cosyn,C Cotton,S Covrig Dusa,Z-F Cui,A d'Angelo,M Döring,MM Dalton,I Danilkin,M Davydov,D Day,F De Fazio,M De Napoli,R De Vita,DJ Dean,M Defurne,M Deur,B Devkota,S Dhital,P Di Nezza,M Diefenthaler,S Diehl,C Dilks,M Ding,C Djalali,S Dobbs,R Dupré,D Dutta,RG Edwards,H Egiyan,L Ehinger,G Eichmann,M Elaasar,L Elouadrhiri,A El Alaoui,L El Fassi,A Emmert,M Engelhardt,R Ent,DJ Ernst,P Eugenio,G Evans,C Fanelli,S Fegan,C Fernández-Ramírez,LA Fernandez,IP Fernando,A Filippi,CS Fischer,C Fogler,N Fomin,L Frankfurt,T Frederico,A Freese,Y Fu,L Gamberg,L Gan,F Gao,H Garcia-Tecocoatzi,D Gaskell,A Gasparian,K Gates,G Gavalian,PK Ghoshal,A Giachino,F Giacosa,F Giannuzzi,G-P Gilfoyle,FX Girod
Journal
arXiv preprint arXiv:2306.09360
Published Date
2023/6/13
This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a community effort, incorporating insights from a series of workshops conducted between March 2022 and April 2023. With a track record of over 25 years in delivering the world's most intense and precise multi-GeV electron beams, CEBAF's potential for a higher energy upgrade presents a unique opportunity for an innovative nuclear physics program, which seamlessly integrates a rich historical background with a promising future. The proposed physics program encompass a diverse range of investigations centered around the nonperturbative dynamics inherent in hadron structure and the exploration of strongly interacting systems. It builds upon the exceptional capabilities of CEBAF in high-luminosity operations, the availability of existing or planned Hall equipment, and recent advancements in accelerator technology. The proposed program cover various scientific topics, including Hadron Spectroscopy, Partonic Structure and Spin, Hadronization and Transverse Momentum, Spatial Structure, Mechanical Properties, Form Factors and Emergent Hadron Mass, Hadron-Quark Transition, and Nuclear Dynamics at Extreme Conditions, as well as QCD Confinement and Fundamental Symmetries. Each topic highlights the key measurements achievable at a 22 GeV CEBAF accelerator. Furthermore, this document outlines the significant physics outcomes and unique aspects of these programs that distinguish them from other existing or planned facilities. In summary, this …
Malte Albrecht FAQs
What is Malte Albrecht's h-index at Ruhr-Universität Bochum?
The h-index of Malte Albrecht has been 55 since 2020 and 64 in total.
What are Malte Albrecht's top articles?
The articles with the titles of
Observation of decays to and
Observations of the Cabibbo-Suppressed decays, and the Cabibbo-Favored decay
Evidence for the decay
Search for Baryon-Number-Violating Oscillations in the Decay
Measurement of from 3.5106 to 4.6988 GeV and study of mass threshold enhancement
Measurement of the absolute branching fraction of the inclusive decay
Observation of e+ e−→ π0π0ψ2 (3823)
Search for the weak decay
...
are the top articles of Malte Albrecht at Ruhr-Universität Bochum.
What are Malte Albrecht's research interests?
The research interests of Malte Albrecht are: Hadron spectroscopy, particle physics
What is Malte Albrecht's total number of citations?
Malte Albrecht has 15,534 citations in total.
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