Measurement of the e+e−→ΛΣ¯0+c.c. cross sections at s from 2.3094 to 3.0800 GeV

M Ablikim,J Y Zhao,R P Guo,K L Li,X Q Hao,W Xu,A Denig,S Nisar,L Wollenberg,C W Wenzel,Y Wang,G Chelkov,H Y Zhang,B Zhong,X Pan,W H Tian,K J Ren,F Stieler,C F Redmer,L Koch,M Pelizaeus,J Zu,X Cai,X D Yu,C F Xu,C X Yue,W H Shen,L Gong,X C Ai,J X Teng,J J Lane,Y T Gu,Q T Tao,R Farinelli,J L Liu,S S Fang,S C Yuan,A Pathak,Y B Liu,S Jin,M H Li,Y J Song,L H Wu,L J Li,X P Xu,R Kiuchi,S Sosio,Y P Guo,M J Guo,Y Ding,T Z Song,J L Ma,Q An,X X Ding,V Batozskaya,X J Wang,X R Lyu,L Yan,H P Wang,T J Jiang,T T Lei,Q J Xu,D Xiao,J Z Zhao,W D Li,A Khoukaz,C W Wang,W P Wang,C J Tang,Z P Mao,P Zhang,T J Min,A Q Zhang,Z Wu,C Liu,D M Li,A Zhemchugov,J Y Liu,J Zhao,G Y Zhang,Z L Zhang,Feng Liu,W C Yan,K Y Liu,L L Ma,N Berger,C H Heinz,Y Xie,S J Wang,C Xie,Z W Yang,M Fritsch,J F Hu,H P Peng,W B Yan,R E Mitchell,Y Niu,X L Lu,Jiawei Zhang,G F Xu,K Peters,S J Zhao,M Wolke,J W Zhang,Z P Xu,H Qi,Z X Meng,W L Chang,T Y Qi,J L Shi,J P Wang,G Felici,S Kabana,J S Lange,S Malde,G R Che,T Lin,J Y Zhang,M X Luo,Huihui Liu,X S Kang,I Balossino,C Li,M M Ma,Z Jiao,Fang Liu,G Li,L Yuan,Y Yuan,Y N Gao,J Libby,Y C Zhai,Z Y Deng,J W Li,X Wu,L Fava,A Lavania,Z J Xiao,D Wei,T J Wang,X Y Zhang,M Irshad,L X Zhu,C Chen,N Hüsken,C Herold,H X Yang,Yaqian Wang,M Q Jing,M Bertani,X H Mo,Y N Wang,Y Zeng,A Mangoni,Z P Xie,C Fritzsch,Lei Li,M Qi,G Y Tang,B Ding,P L Liu,M Berlowski,Y G Xie,V Rodin,J Fang,J Bloms,H Sun,M N Achasov,Y D Wang,T Sun,Y K Heng,W J Zhu,J Q Zhang,Y Zhang,K J Zhu,J G Lu,T Johansson,Jianyu Zhang,K X Huang,M Shao,X Kui,Tao Yang,J H Jeong,H Liu,Y Ma,J F Shangguan,Y J Mao,Xiaoyu Li,I B Nikolaev,H M Hu,Shuihan Zhang,Ke Liu,X H Xie,J J Zhang,S H Zhu,B Zheng,B A Shi,W L Xu,W Y Han,U W Wiedner,X C Lou,T T Han,Y H Wang,G S Huang,C D Fu,F X Lu,X Shi,Z X Li,H H Zhang,C H Li,M Rolo,S S Sun,A A Zafar,L Q Zhang,F A Harris,S Pogodin,W X Fang,X Chu,J Zhu,S Pacetti,M K Kuessner,Lu Liu,J Jackson,A Calcaterra,Z T Sun,Y T Zhang,K Liu,Z Wang,J Tang,Q Liu,X L Luo,S Q Qu,X Zhong,Y B Zhao,A Limphirat,H L Ma,C Z Yuan,R G Ping,G X Sun,Y F Yang,L K Li,S Marcello,T Y Xing,Q Ji,L Q Qin,Z J Chen,X Q Jia,F C Ma,W J Zheng,J B Liu,A Kupsc,Z J Li,C J Xu,B J Liu,D H Zhang,V Prasad,Z H Duan,K Begzsuren,X K Zhou,Y W Fu,C Liang,Y X Zhao,J S Li,M Lellmann,K K He,R Kliemt,W Y Sun,X Q Yuan,E Bianco,W B Qian,R Kappert,O B Kolcu,J P Zheng,B X Zhang,M R An,Y Q Chen,S Janchiv,Y H Zhang,X Y Shan,H Miao,G Cibinetto,X M Xian,Z H Zhang,J G Messchendorp,Y P Huang,Yi Wang,Z Q Liu,L Y Tao,N Yu Muchnoi,L Lavezzi,Y Wu,H Leithoff,M Y Dong,Z Y Zhang,O Bakina,H Q Zhang,B L Zhang,G Chen,W K Liu,J H Yin,Y J Su,L B Guo,Y Jiang,Y Z Zhou,Q P Ji,K Wang,I Uman,M H Ye,W G Li,G B Sun,Bo Wang,Ling Zhao,J L Ping,S A Cetin,W Wang,T Wang,R Q Ma,B X Liu,C Y Guan,Z L Guan,T Holtmann,X Q Yan,Yang Gao,F Bianchi,F Nerling,S K Choi,Z H Lei,T Luo,Z Ning,A Dbeyssi,Y X Song,D Dedovich,Y F Wang,X L Wang,L Q Huang,S J Chen,S Y Xiao,Q N Xu,W S Cheng,L L Wang,F Li,Y T Liang,Y Yang,Y H Zheng,D H Wei,Y Q Wang,F Weidner,Y Pan,T Yu,Y R Hou,B Wang,P Larin,X R Zhou,L P Zhou,Y Nefedov,Y Y Ji,T Hu,T Chen,S Wang,D Liu,P C Hong,H C Shi,H B Li,Y Lu,I Denysenko,H L Dai,X T Huang,H N Li,L Y Dong,L J Wu,Z L Wang,J Y Shi,W Shan,K Zhu,J H Zou,A Sarantsev,X Y Zhai,A Bortone,G Yu,Y P Lu,A Brueggemann,K Y Shan,F E Maas,L Sun,J L Fu,K L He,S L Olsen,Y L Xiao,Yifan Yang,Y Tian,I Garzia,P C Jiang,X Y Shen,T T Chang,Z P Yao,G Y Hou,L Xia,F Cossio,M H Gu,F H Liu,C X Liu,P Patteri,Y Z Sun,Y Jin,M Scodeggio,Y B Chen,M L Chen,V Thoren,J J Cui,D Bettoni,Y Hu,W M Song,Y X Yang,Chao Chen,H S Chen,Q Q Shi,J R Li,S Plura,X R Chen,M Kavatsyuk,G R Liao,F R Zeng,M G Zhao,X H Li,H J Yang,X S Qin,M Greco,S Jaeger,L C Liu,Y A Tang,H Gao,A Q Guo,X Zhou,Y Sun,J J Song,S Qian,Y H Zhan,J B Jiao,T Hussain,W Kühn,B C Ke,Ziyi Wang,Q X Li,X Y Ma,Y Liu,Cheng Li,M Wang,M H Liu,M Maggiora,Y J Wu,N Cao,Ke Li,X F Wang,R T Ma,X Wang,H J Wang,C P Shen,R E De Boer,Hui Li,X T Hou,Shulei Zhang,J P Dai,H J Li,X Zeng,A Guskov,Lei Zhao,Z F Tian,E M Gersabeck,S Spataro,J Z Zhang,Y Fang,Q M Ma,H Xiao,Huanhuan Liu,L Zhu,P Egorov,S Gramigna,B Kopf,Y C Xu,S P Wen,X M Zhang,Y F Liang,H F Shen,R Aliberti,C Wu,Y M Ma,Z A Zhu,F Z Qi,J Dong,T Lenz,R S Shi,Z S Xu,D Y Wang,B L Wang,X Liu,A Amoroso,S M Chen,Y Ban,Z G Zhao,S Q Zhu,S X Li,P R Li,X Y Zhou,J J Qin,H Cai,J L Zhang,H Zhang,H Liang,Z Y Yuan,L Z Liao,W M Liu,G Wilkinson,G Rong,H J Lu,Ch Rosner,D X Lin,C F Qiao,F Yan,S B Liu,Y J Zeng,X L Ji,Z A Liu,J S Yu,Z W Ge,Meng Wang,J F Sun,X P Qin,Z Y Wang,H R Qi,H K Sun,X L Li,Yan Zhang,X H Wu,G Y Xiao,Y F Lyu,G Mezzadri,T Liu,C L Luo,Y P Pei,G M Liu,T J Zhu,G Zhao,A Rivetti,H Zhou,K Fischer,Z Y You,Z H Lu,M Destefanis,S S Jiang,K Sun,H B Liu,J F Wu,K Schoenning,F De Mori,H Li,H M Liu,Y C Zhu,J X Zhang,T Li,Q Y Zhang,Yao Zhang,L M Zhang,W Imoehl,C X Yu,F Feldbauer,S N Ruan,L G Shao,B X Yu,Y J Sun,Z K Jia,T Xiang,P Adlarson,S C Coen,J H Feng,Y H Xie,N Kalantar-Nayestanaki,Y X Tan,P T Ge,N Salone,A Gilman,Q Ouyang,K Goetzen,J F Chang,Y G Li,M Tat,X S Jiang,X B Ji,F Wang,X T Chen,Y Bai,X L Kang,L Liu,S X Du,Lei Zhang,Y Schelhaas,F H H Heinsius,G F Cao,Z L Hou,S Garbolino,H L Yang,X Dong,H Y Xu,J F Qiu,Z H Qin,R A Briere,I Boyko,C Q Feng,Y L Fan,C Geng,W Gradl,W X Gong,X D Zhang,M Ye

doi:10.1103/physrevd.109.012002

Measurement of the e+e−→ΛΣ¯0+c.c. cross sections at s from 2.3094 to 3.0800 GeV

M Ablikim, J Y Zhao + Show 611 more

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https://doi.org/10.1103/physrevd.109.012002

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Journal: Physical Review D	Publication Date: Jan 4, 2024
Citations: 1	License type: CC BY 4.0

#Born Cross Section #Strong-interaction Effects + Show 8 more

Abstract
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Abstract

The Born cross sections and effective form factors of the process e+e−→ΛΣ¯0+c.c. are measured at 14 center-of-mass energy points from 2.3094 to 3.0800 GeV, based on data corresponding to an integrated luminosity of (478.5±4.8) pb−1 collected with the BESIII detector. A nonzero Born cross section is observed at the center-of-mass energy of 2.3094 GeV with a statistical significance of more than five standard deviations, and the cross sections at other energies are obtained with improved precision compared to earlier measurements from the Collaboration. The Born cross-section line shape is described better by a shape considering the strong-interaction effects than by a pQCD motivated functional form. Published by the American Physical Society 2024

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