Search for ηc(2S)→K+K−η′ decay

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

doi:10.1103/physrevd.111.012004

M Ablikim, Y X Song + Show 661 more

https://doi.org/10.1103/physrevd.111.012004

Copy DOI

Export

Save

Cite

Journal: Physical Review D	Publication Date: Jan 14, 2025
License type: CC BY 4.0

Abstract
Full-Text
Similar Papers

Abstract

Listen

Using (2.712±0.014)×109 ψ(2S) events collected with the BESIII detector operating at the BEPCII, we search for the ηc(2S)→K+K−η′ decay. Its decay branching fraction is measured to be (11.11±4.67(stat)±1.82(syst)±4.24(extr))×10−4, where the first uncertainty is statistical, the second is systematic, and the third uncertainty is from the branching fraction of the ψ(2S)→γηc(2S) decay. The statistical significance is 2.8σ. The upper limit on the product branching fraction B[ψ(2S)→γηc(2S)]×B[ηc(2S)→K+K−η′] is set to be 0.94×10−6 at 90% confidence level. In addition, the branching fractions of χc1→K+K−η′ and χc2→K+K−η′ are updated to be (8.48±0.10(stat)±0.47(syst))×10−4 and (1.53±0.04(stat)±0.08(syst))×10−4, respectively. The precision is improved by twofold. Published by the American Physical Society 2025

Full Text