在过程\(e^{+}e^{-}→ωχ_{c1}\)和\(ωχ_{c2}\)中对结构的观测

Observation of Structures in the Processes e^{+}e^{-}→ωχ_{c1} and ωχ_{c2}.

作者信息

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

机构信息

Institute of High Energy Physics, Beijing 100049, People's Republic of China.

Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia.

出版信息

Phys Rev Lett. 2024 Apr 19;132(16):161901. doi: 10.1103/PhysRevLett.132.161901.

DOI:10.1103/PhysRevLett.132.161901

PMID:38701481

Abstract

We present measurements of the Born cross sections for the processes e^{+}e^{-}→ωχ_{c1} and ωχ_{c2} at center-of-mass energies sqrt[s] from 4.308 to 4.951 GeV. The measurements are performed with data samples corresponding to an integrated luminosity of 11.0 fb^{-1} collected with the BESIII detector operating at the Beijing Electron Positron Collider storage ring. Assuming the e^{+}e^{-}→ωχ_{c2} signals come from a single resonance, the mass and width are determined to be M=(4413.6±9.0±0.8) MeV/c^{2} and Γ=(110.5±15.0±2.9) MeV, respectively, which is consistent with the parameters of the well-established resonance ψ(4415). In addition, we also use one single resonance to describe the e^{+}e^{-}→ωχ_{c1} line shape and determine the mass and width to be M=(4544.2±18.7±1.7) MeV/c^{2} and Γ=(116.1±33.5±1.7) MeV, respectively. The structure of this line shape, observed for the first time, requires further understanding.

摘要

我们给出了在质心能量(\sqrt{s})从4.308至4.951 GeV下，(e^{+}e^{-}\to\omega\chi_{c1})和(e^{+}e^{-}\to\omega\chi_{c2})过程的玻恩截面测量结果。这些测量使用了对应于在北京正负电子对撞机储存环上运行的BESIII探测器收集的11.0 fb⁻¹积分亮度的数据样本。假设(e^{+}e^{-}\to\omega\chi_{c2})信号来自单一共振，确定其质量和宽度分别为(M=(4413.6\pm9.0\pm0.8)) MeV/c²和(\Gamma=(110.5\pm15.0\pm2.9)) MeV，这与已确立的共振态(\psi(4415))的参数一致。此外，我们还用单一共振来描述(e^{+}e^{-}\to\omega\chi_{c1})的线形，并确定其质量和宽度分别为(M=(4544.2\pm18.7\pm1.7)) MeV/c²和(\Gamma=(116.1\pm33.5\pm1.7)) MeV。首次观测到的这种线形结构需要进一步研究。