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- Search for hidden-charm tetraquark with strangeness in e+e−→K+Ds∗−D∗0+c.c. 认领 引用 被引量：1
- 1
- 作者 M.Ablikim M.N.Achasov +579 位作者 P.Adlarson M.Albrecht R.Aliberti A.Amoroso M.R.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 R.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.R.Che G.Chelkov C.Chen Chao Chen G.Chen H.S.Chen M.L.Chen S.J.Chen S.M.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Z.J.Chen W.S.Cheng S.K.Choi X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbeyssi R.E.de Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du Z.H.Duan P.Egorov Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng K Fischer M.Fritsch C.Fritzsch C.D.Fu H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu Y.T.Gu C.Y Guan A.Q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold G.Y.Hou Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv E.Jang J.H.Jeong Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji Z.K.Jia P.C.Jiang S.S.Jiang X.S.Jiang Y.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson S.Kabana N.Kalantar-Nayestanaki X.L.Kang X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz R.Kiuchi R.Kliemt1 L.Koch o.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi T.T.Lei Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.J.Li H.N.Li J.Q.Li J.S.Li J.W.Li Ke Li L.J Li L.K.Li Lei Li M.H.Li P.R.Li S.X.Li S.Y.Li T.Li W.D.Li W.G.Li X.H.Li X.L.Li Xiaoyu Li Y.G.Li Z.X.Li Z.Y.Li C.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang G.R.Liao L.Z.Liao J.Libby A.Limphirat C.X.Lin D.X.Lin T.Lin B.J.Liu C.Liu C.X.Liu D.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 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.B.Liu Z.A.Liu Z.Q.Liu X.C.Lou F.X.Lu H.J.Lu J.G.Lu X.L.Lu Y.Lu Y.P.Lu Z.H.Lu C.L.Luo M.X.Luo T.Luo X.L.Luo X.R.Lyu Y.F.Lyu F.C.Ma H.L.Ma L.L.Ma M.M.Ma Q.M.Ma R.Q.Ma R.T.Ma X.Y.Ma Y.Ma F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni Y.J.Mao Z.P.Mao S.Marcello Z.X.Meng J.G.Messchendorp G.Mezzadri H.Miao T.J.Min R.E.Mitchell X.H.Mo N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev Z.Ning S.Nisar Y.Niu S.L.olsen Q.ouyang S.Pacetti X.Pan Y.Pan A.Pathak Y.P.Pei M.Pelizaeus H.P.Peng K.Peters J.L.Ping R.G.Ping S.Plura S.Pogodin V.Prasad F.Z.Qi H.Qi H.R.Qi M.Qi T.Y.Qi S.Qian W.B.Qian Z.Qian C.F.Qiao J.J.Qin L.Q.Qin X.P.Qin X.S.Qin Z.H.Qin J.F.Qiu S.Q.Qu K.H.Rashid C.F.Redmer K.J.Ren A.Rivetti V.Rodin M.Rolo G.Rong Ch.Rosner S.N.Ruan A.Sarantsev Y.Schelhaas C.Schnier K.Schoenning M.Scodeggio K.Y.Shan W.Shan X.Y.Shan J.F.Shangguan L.G.Shao M.Shao C.P.Shen H.F.Shen W.H.Shen X.Y.Shen B.A.Shi H.C.Shi J.Y.Shi q.q.Shi R.S.Shi X.Shi J.J.Song W.M.Song Y.X.Song S.Sosio S.Spataro F.Stieler P.P.Su Y.J.Su G.X.Sun H.Sun H.K.Sun J.F.Sun L.Sun S.S.Sun T.Sun W.Y.Sun Y.J.Sun Y.Z.Sun Z.T.Sun Y.H.Tan Y.X.Tan C.J.Tang G.Y.Tang J.Tang L.Y.Tao Q.T.TAO M.Tat J.X.Teng V.Thoren W.H.Tian Y.Tian I.Uman B.Wang B.Wang B.L.Wang C.W.Wang D.Y.Wang F.Wang H.J.Wang H.P.Wang K.Wang L.L.Wang M.Wang M.Z.Wang Meng Wang S.Wang S.Wang T.Wang T.J.Wang W.Wang W.H.Wang W.P.Wang X.Wang X.F.Wang X.L.Wang Y.Wang Y.D.Wang Y.F.Wang Y.H.Wang Y.Q.Wang Yaqian Wang Z.Wang Z.Y.Wang Ziyi Wang D.H.Wei F.Weidner S.P.Wen D.J.White U.Wiedner G.Wilkinson M.Wolke L.Wollenberg J.F.Wu L.H.Wu L.J.Wu X.Wu X.H.Wu Y.Wu Y.J Wu Z.Wu L.Xia T.Xiang D.Xiao G.Y.Xiao H.Xiao S.Y.Xiao Y.L.Xiao Z.J.Xiao C.Xie X.H.Xie Y.Xie Y.G.Xie Y.H.Xie Z.P.Xie T.Y.Xing C.F.Xu C.J.Xu G.F.Xu H.Y.Xu Q.J.Xu X.P.Xu Y.C.Xu Z.P.Xu F.Yan L.Yan W.B.Yan W.C.Yan H.J.Yang H.L.Yang H.X.Yang Tao Yang Y.F.Yang Y.X.Yang Yifan Yang M.Ye M.H.Ye J.H.Yin Z.Y.You B.X.Yu C.X.Yu G.Yu T.Yu X.D.Yu C.Z.Yuan L.Yuan S.C.Yuan X.Q.Yuan Y.Yuan Z.Y.Yuan C.X.Yue A.A.Zafar F.R.Zeng X.Zeng Y.Zeng X.Y.Zhai Y.H.Zhan A.Q.Zhang B.L.Zhang B.X.Zhang D.H.Zhang G.Y.Zhang H.Zhang H.H.Zhang H.H.Zhang H.Q.Zhang H.Y.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 X.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.Zhang G.Zhao J.Zhao J.Y.Zhao J.Z.Zhao Lei Zhao Ling Zhao M.G.Zhao S.J.Zhao Y.B.Zhao Y.X.Zhao Z.G.Zhao A.Zhemchugov B.Zheng J.P.Zheng Y.H.Zheng B.Zhong C.Zhong X.Zhong H.Zhou L.P.Zhou X.Zhou X.K.Zhou X.R.Zhou X.Y.Zhou Y.Z.Zhou J.Zhu K.Zhu K.J.Zhu L.X.Zhu S.H.Zhu S.Q.Zhu T.J.Zhu W.J.Zhu Y.C.Zhu Z.A.Zhu J.H.Zou J.Zu 《Chinese Physics C》 SCIE CAS CSCD 2023年第3期1-14,共14页
- We report a search for a heavier partner of the recently observed Zcs(3985)-state,denoted as Zcs'-,in the process e+e−→K+Ds∗−D∗0+c.c.,based on e*e-collision data collected at t... We report a search for a heavier partner of the recently observed Zcs(3985)-state,denoted as Zcs'-,in the process e+e−→K+Ds∗−D∗0+c.c.,based on e*e-collision data collected at the center-of-mass energies of√s=4.661,4.682 and 4.699 GeV with the BESIII detector.The Zcs'-is of interest as it is expected to be a candidate for a hidden-charm and open-strange tetraquark.A partial-reconstruction technique is used to isolate K+recoil-mass spectra,which are probed for a potential contribution from Zcs'-→Ds∗−D∗0+c.c.We find an excess of Zcs'-→Ds*--D*0(c.c.)candidates with a significance of 2.1o,after considering systematic uncertainties,at a mass of(4123.5±0.7sat±4.7syst.)MeV/c2.As the data set is limited in size,the upper limits are evaluated at the 90%confidence level on the product of the Born cross sections(σBorm)and the branching fraction(B)of Zcs'-→Ds*--D*0,under different assumptions of the Zcs'-mass from 4.120 to 4.140 MeV and of the width from 10 to 50 MeV at the three center-of-mass energies.The upper limits ofσBorn.B are found to be at the level of O(1)pb at each energy.Larger data samples are needed to confirm the Zcs'-state and clarify its nature in the coming years. 展开更多
- 关键词 electron-positron collision BESIl hadron spectroscopy tetraquark
- 题名Search for hidden-charm tetraquark with strangeness in e+e−→K+Ds∗−D∗0+c.c. 认领 引用 被引量：1
- 1
- 作者 M.Ablikim M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso M.R.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 R.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.R.Che G.Chelkov C.Chen Chao Chen G.Chen H.S.Chen M.L.Chen S.J.Chen S.M.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Z.J.Chen W.S.Cheng S.K.Choi X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbeyssi R.E.de Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du Z.H.Duan P.Egorov Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng K Fischer M.Fritsch C.Fritzsch C.D.Fu H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu Y.T.Gu C.Y Guan A.Q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold G.Y.Hou Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv E.Jang J.H.Jeong Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji Z.K.Jia P.C.Jiang S.S.Jiang X.S.Jiang Y.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson S.Kabana N.Kalantar-Nayestanaki X.L.Kang X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz R.Kiuchi R.Kliemt1 L.Koch o.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi T.T.Lei Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.J.Li H.N.Li J.Q.Li J.S.Li J.W.Li Ke Li L.J Li L.K.Li Lei Li M.H.Li P.R.Li S.X.Li S.Y.Li T.Li W.D.Li W.G.Li X.H.Li X.L.Li Xiaoyu Li Y.G.Li Z.X.Li Z.Y.Li C.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang G.R.Liao L.Z.Liao J.Libby A.Limphirat C.X.Lin D.X.Lin T.Lin B.J.Liu C.Liu C.X.Liu D.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 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.B.Liu Z.A.Liu Z.Q.Liu X.C.Lou F.X.Lu H.J.Lu J.G.Lu X.L.Lu Y.Lu Y.P.Lu Z.H.Lu C.L.Luo M.X.Luo T.Luo X.L.Luo X.R.Lyu Y.F.Lyu F.C.Ma H.L.Ma L.L.Ma M.M.Ma Q.M.Ma R.Q.Ma R.T.Ma X.Y.Ma Y.Ma F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni Y.J.Mao Z.P.Mao S.Marcello Z.X.Meng J.G.Messchendorp G.Mezzadri H.Miao T.J.Min R.E.Mitchell X.H.Mo N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev Z.Ning S.Nisar Y.Niu S.L.olsen Q.ouyang S.Pacetti X.Pan Y.Pan A.Pathak Y.P.Pei M.Pelizaeus H.P.Peng K.Peters J.L.Ping R.G.Ping S.Plura S.Pogodin V.Prasad F.Z.Qi H.Qi H.R.Qi M.Qi T.Y.Qi S.Qian W.B.Qian Z.Qian C.F.Qiao J.J.Qin L.Q.Qin X.P.Qin X.S.Qin Z.H.Qin J.F.Qiu S.Q.Qu K.H.Rashid C.F.Redmer K.J.Ren A.Rivetti V.Rodin M.Rolo G.Rong Ch.Rosner S.N.Ruan A.Sarantsev Y.Schelhaas C.Schnier K.Schoenning M.Scodeggio K.Y.Shan W.Shan X.Y.Shan J.F.Shangguan L.G.Shao M.Shao C.P.Shen H.F.Shen W.H.Shen X.Y.Shen B.A.Shi H.C.Shi J.Y.Shi q.q.Shi R.S.Shi X.Shi J.J.Song W.M.Song Y.X.Song S.Sosio S.Spataro F.Stieler P.P.Su Y.J.Su G.X.Sun H.Sun H.K.Sun J.F.Sun L.Sun S.S.Sun T.Sun W.Y.Sun Y.J.Sun Y.Z.Sun Z.T.Sun Y.H.Tan Y.X.Tan C.J.Tang G.Y.Tang J.Tang L.Y.Tao Q.T.TAO M.Tat J.X.Teng V.Thoren W.H.Tian Y.Tian I.Uman B.Wang B.Wang B.L.Wang C.W.Wang D.Y.Wang F.Wang H.J.Wang H.P.Wang K.Wang L.L.Wang M.Wang M.Z.Wang Meng Wang S.Wang S.Wang T.Wang T.J.Wang W.Wang W.H.Wang W.P.Wang X.Wang X.F.Wang X.L.Wang Y.Wang Y.D.Wang Y.F.Wang Y.H.Wang Y.Q.Wang Yaqian Wang Z.Wang Z.Y.Wang Ziyi Wang D.H.Wei F.Weidner S.P.Wen D.J.White U.Wiedner G.Wilkinson M.Wolke L.Wollenberg J.F.Wu L.H.Wu L.J.Wu X.Wu X.H.Wu Y.Wu Y.J Wu Z.Wu L.Xia T.Xiang D.Xiao G.Y.Xiao H.Xiao S.Y.Xiao Y.L.Xiao Z.J.Xiao C.Xie X.H.Xie Y.Xie Y.G.Xie Y.H.Xie Z.P.Xie T.Y.Xing C.F.Xu C.J.Xu G.F.Xu H.Y.Xu Q.J.Xu X.P.Xu Y.C.Xu Z.P.Xu F.Yan L.Yan W.B.Yan W.C.Yan H.J.Yang H.L.Yang H.X.Yang Tao Yang Y.F.Yang Y.X.Yang Yifan Yang M.Ye M.H.Ye J.H.Yin Z.Y.You B.X.Yu C.X.Yu G.Yu T.Yu X.D.Yu C.Z.Yuan L.Yuan S.C.Yuan X.Q.Yuan Y.Yuan Z.Y.Yuan C.X.Yue A.A.Zafar F.R.Zeng X.Zeng Y.Zeng X.Y.Zhai Y.H.Zhan A.Q.Zhang B.L.Zhang B.X.Zhang D.H.Zhang G.Y.Zhang H.Zhang H.H.Zhang H.H.Zhang H.Q.Zhang H.Y.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 X.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.Zhang G.Zhao J.Zhao J.Y.Zhao J.Z.Zhao Lei Zhao Ling Zhao M.G.Zhao S.J.Zhao Y.B.Zhao Y.X.Zhao Z.G.Zhao A.Zhemchugov B.Zheng J.P.Zheng Y.H.Zheng B.Zhong C.Zhong X.Zhong H.Zhou L.P.Zhou X.Zhou X.K.Zhou X.R.Zhou X.Y.Zhou Y.Z.Zhou J.Zhu K.Zhu K.J.Zhu L.X.Zhu S.H.Zhu S.Q.Zhu T.J.Zhu W.J.Zhu Y.C.Zhu Z.A.Zhu J.H.Zou J.Zu
- 机构 Institute of High Energy Physics Beihang University Beijing Institute of PetrochemicalTechnology Bochum Ruhr-University,D-44780 Bochum Carnegie Mellon University,Pittsburgh Central China Normal University Central South University China Center of AdvancedScience and Technology China University of Geosciences COMSATS University Islamabad,LahoreCampus,Defence Road,Off Raiwind Road,54000 Lahore Fudan University G.I.Budker Institute of NuclearPhysics SB RAS（BINP） GSI Helmholtzcentre for Heavy Ion Research GmbH,D-64291 Darmstadt GuangxiNormal University Guangxi University Hangzhou Normal University Hebei University Helmholtz Institute Mainz,Staudinger Weg 18,D-55099 Mainz Henan NormalUniversity Henan University of Science and Technology Henan University of Technology Huangshan College Hunan Normal University Hunan University Indian Institute of Technology Madras Indiana University,Bloomington INFN Laboratori Nazionali di Frascati,INFN Laboratori Nazionali di Frascati,Frascati INFN Laboratori Nazionali di Frascati,INFN Sezione di Perugia,Perugia INFN Laboratori Nazionali di Frascati,University of Perugia,Perugia INFN Sezione di Ferrara,INFN Sezione di Ferrara,Ferrara INFN Sezione di Ferrara,University of Ferrara,Ferrara Institute of Modern Physics Institute of Physics and Technology Instituto de Alta Investigación,Universidad de Tarapacá,Casilla 7D Jilin University Johannes Gutenberg University of Mainz,Johann-Joachim-Becher-Weg 45,D-55099 Mainz Joint Institute forNuclear Research,141980 Dubna,Moscow region Justus-Liebig-Universitaet Giessen,II.Physikalisches Institut,Heinrich-Buff-Ring16,D-35392 Giessen Lanzhou University Liaoning Normal University LiaoningUniversity Nanjing Normal University Nanjing University NankaiUniversity National Centre for Nuclear Research North China Electric Power University Peking University Qufu Normal University Shandong Normal University Shandong University Shanghai Jiao Tong University Shanxi NormalUniversity Shanxi University Sichuan University SoochowUniversity South China Normal University Southeast University State Key Laboratory of Particle Detection and Electronics Sun Yat-Sen University Suranaree University of Technology Tsinghua University Turkish Accelerator Center Particle Factory Group,Istinye University,Istanbul Turkish Accelerator Center Particle Factory Group,Near East University,Nicosia,North Cyprus,Mersin 10 University of Chinese Academy of Sciences University of Groningen,NL-9747 AA Groningen University of Hawaii,Honolulu University of Jinan University of Manchester,Oxford Road,Manchester University of Muenster,Wilhelm-Klemm-Strasse 9,48149 Muenster University ofOxford,Keble Road,Oxford OX13RH University of Science and Technology Liaoning University ofScience and Technology of China University of South China University of the Punjab University of Turin and INFN,University of Turin University of Turin and INFN,Universityof Eastern Piedmont,Alessandria University of Turin and INFN Uppsala University,SE-75120 Uppsala Wuhan University Xinyang Normal University Yantai University Yunnan University Zhejiang University Zhengzhou University Also at the Moscow Institute of Physics and Technology Also at the Novosibirsk State University,Novosibirsk Also at the NRC"Kurchatov Institute",Gatchina Also at Goethe University Frankfurt,60323 Frankfurt am Main Also at Key Laboratory for Particle Physics,Astrophysics and Cosmology,Ministry of Education/Shanghai Key Laboratory for Particle Physicsand Cosmology/Institute of Nuclear and Particle Physics Also at Key Laboratory of Nuclear Physics and Ion-beam Application（MOE）and Institute of Modern Physics,Fudan University Also at State Key Laboratory of Nuclear Physics and Technology,Peking University Also at School of Physics and Electronics,Hunan University Also at Guangdong Provincial Key Laboratory of Nuclear Science,Institute of Quantum Matter,South China Normal University Also at Frontiers Science Center for Rare Isotopes,Lanzhou University Also at Lanzhou Center for Theoretical Physics,Lanzhou University Also at the Department of Mathematical Sciences,Karachi
- 出处 《Chinese Physics C》 SCIE CAS CSCD 2023年第3期1-14,共14页
- 基金 Supported in part by National Key R&D Program of China(Grant Nos.2020YFA0406400,2020YFA0406300) National Natural Science Foundation of China(NSFC)(Grant Nos.11635010,11735014,11805086,11835012,11935015,11935016,11935018,11961141012,12022510,12025502,12035009,12035013,12192260,12192261,12192262,12192263,12192264,12192265) +18 种基金 the Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program Joint Large-Scale Scientific Facility Funds of the NSFC and CAS(Grant No.U1832207) the CAS Center for Excellence in Particle Physics(CCEPP) 100 Talents Program of CAS Fundamental Research Funds for the Central Universities,Lanzhou University,University of Chinese Academy of Sciences The Institute of Nuclear and Particle Physics(INPAC)and Shanghai Key Laboratory for Particle Physics and Cosmology ERC(Grant No.758462) European Union's Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant agreement(Grant No.894790) German Research Foundation DFG(Grant No.443159800),Collaborative Research Center CRC 1044,GRK 2149 Istituto Nazionale di Fisica Nucleare,Italy Ministry of Development of Turkey(Grant No.DPT2006K-120470) National Science and Technology fund National Science Research and Innovation Fund(NSRF)via the Program Management Unit for Human Resources&Institutional Development,Research and Innovation(Grant No.B16F640076) Olle Engkvist Foundation(Grant No.200-0605) STFC(United Kingdom) Suranaree University of Technology(SUT),Thailand Science Research and Innovation(TSRI),and National Science Research and Innovation Fund(NSRF)(Grant No.160355) The Royal Society,UK(Grant Nos.DH140054,DH160214) The Swedish Research Council U.S.Department of Energy(Grant No.DE-FG02-05ER41374)。
- 摘要 We report a search for a heavier partner of the recently observed Zcs(3985)-state,denoted as Zcs'-,in the process e+e−→K+Ds∗−D∗0+c.c.,based on e*e-collision data collected at the center-of-mass energies of√s=4.661,4.682 and 4.699 GeV with the BESIII detector.The Zcs'-is of interest as it is expected to be a candidate for a hidden-charm and open-strange tetraquark.A partial-reconstruction technique is used to isolate K+recoil-mass spectra,which are probed for a potential contribution from Zcs'-→Ds∗−D∗0+c.c.We find an excess of Zcs'-→Ds*--D*0(c.c.)candidates with a significance of 2.1o,after considering systematic uncertainties,at a mass of(4123.5±0.7sat±4.7syst.)MeV/c2.As the data set is limited in size,the upper limits are evaluated at the 90%confidence level on the product of the Born cross sections(σBorm)and the branching fraction(B)of Zcs'-→Ds*--D*0,under different assumptions of the Zcs'-mass from 4.120 to 4.140 MeV and of the width from 10 to 50 MeV at the three center-of-mass energies.The upper limits ofσBorn.B are found to be at the level of O(1)pb at each energy.Larger data samples are needed to confirm the Zcs'-state and clarify its nature in the coming years.
- 关键词 electron-positron collision BESIl hadron spectroscopy tetraquark
- 分类号 O572.33 [理学—粒子物理与原子核物理]
