Study of the Decay and Production Properties of Ds1 (2536) and Ds2∗ (2573)

被引：0

作者：

Ablikim, M. ^{[1
]}

Achasov, M.N. ^{[4
,93
]}

Adlarson, P. ^{[85
]}

Afedulidis, O. ^{[3
]}

Ai, X.C. ^{[90
]}

Aliberti, R. ^{[38
]}

Amoroso, A. ^{[82
,84
]}

An, Q. ^{[61
,79
]}

Bai, Y. ^{[60
]}

Bakina, O. ^{[39
]}

Balossino, I. ^{[31
]}

Ban, Y. ^{[49
,98
]}

Bao, H.-R. ^{[71
]}

Batozskaya, V. ^{[1
,47
]}

Begzsuren, K. ^{[35
]}

Berger, N. ^{[38
]}

Berlowski, M. ^{[47
]}

Bertani, M. ^{[28
]}

Bettoni, D. ^{[31
]}

Bianchi, F. ^{[82
,84
]}

Bianco, E. ^{[82
,84
]}

Bortone, A. ^{[82
,84
]}

Boyko, I. ^{[39
]}

Briere, R.A. ^{[5
]}

Brueggemann, A. ^{[76
]}

Cai, H. ^{[86
]}

Cai, X. ^{[1
,61
]}

Calcaterra, A. ^{[28
]}

Cao, G.F. ^{[1
,71
]}

Cao, N. ^{[1
,71
]}

Cetin, S.A. ^{[65
]}

Chai, X.Y. ^{[49
,98
]}

Chang, J.F. ^{[1
,61
]}

Che, G.R. ^{[46
]}

Che, Y.Z. ^{[1
,61
,71
]}

Chelkov, G. ^{[39
,92
]}

Chen, C. ^{[46
]}

Chen, C.H. ^{[9
]}

Chen, Chao ^{[58
]}

Chen, G. ^{[1
]}

Chen, H.S. ^{[1
,71
]}

Chen, H.Y. ^{[20
]}

Chen, M.L. ^{[1
,61
,71
]}

Chen, S.J. ^{[45
]}

Chen, S.L. ^{[48
]}

Chen, S.M. ^{[64
]}

Chen, T. ^{[1
,71
]}

Chen, X.R. ^{[34
,71
]}

Chen, X.T. ^{[1
,71
]}

Chen, Y.B. ^{[1
,61
]}

机构：

[1] Institute of High Energy Physics, Beijing,100049, China

[2] Beihang University, Beijing,100191, China

[3] Bochum Ruhr-University, Bochum,D-44780, Germany

[4] Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk,630090, Russia

[5] Carnegie Mellon University, Pittsburgh,PA,15213, United States

[6] Central China Normal University, Wuhan,430079, China

[7] Central South University, Changsha,410083, China

[8] China Center of Advanced Science and Technology, Beijing,100190, China

[9] China University of Geosciences, Wuhan,430074, China

[10] Chung-Ang University, Seoul,06974, Korea, Republic of

[11] COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore,54000, Pakistan

[12] Fudan University, Shanghai,200433, China

[13] GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt,D-64291, Germany

[14] Guangxi Normal University, Guilin,541004, China

[15] Guangxi University, Nanning,530004, China

[16] Hangzhou Normal University, Hangzhou,310036, China

[17] Hebei University, Baoding,071002, China

[18] Helmholtz Institute Mainz, Staudinger Weg 18, Mainz,D-55099, Germany

[19] Henan Normal University, Xinxiang,453007, China

[20] Henan University, Kaifeng,475004, China

[21] Henan University of Science and Technology, Luoyang,471003, China

[22] Henan University of Technology, Zhengzhou,450001, China

[23] Huangshan College, Huangshan,245000, China

[24] Hunan Normal University, Changsha,410081, China

[25] Hunan University, Changsha,410082, China

[26] Indian Institute of Technology Madras, Chennai,600036, India

[27] Indiana University, Bloomington,IN,47405, United States

[28] INFN Laboratori Nazionali di Frascati, INFN Laboratori Nazionali di Frascati, Frascati,I-00044, Italy

[29] INFN Sezione di Perugia, Perugia,I-06100, Italy

[30] University of Perugia, Perugia,I-06100, Italy

[31] INFN Sezione di Ferrara, INFN Sezione di Ferrara, Ferrara,I-44122, Italy

[32] University of Ferrara, Ferrara,I-44122, Italy

[33] Inner Mongolia University, Hohhot,010021, China

[34] Institute of Modern Physics, Lanzhou,730000, China

[35] Institute of Physics and Technology, Peace Avenue 54B, Ulaanbaatar,13330, Mongolia

[36] Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica,1000000, Chile

[37] Jilin University, Changchun,130012, China

[38] Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz,D-55099, Germany

[39] Joint Institute for Nuclear Research, Moscow region, Dubna,141980, Russia

[40] Justus-Liebig-Universitaet Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen,D-35392, Germany

[41] Lanzhou University, Lanzhou,730000, China

[42] Liaoning Normal University, Dalian,116029, China

[43] Liaoning University, Shenyang,110036, China

[44] Nanjing Normal University, Nanjing,210023, China

[45] Nanjing University, Nanjing,210093, China

[46] Nankai University, Tianjin,300071, China

[47] National Centre for Nuclear Research, Warsaw,02-093, Poland

[48] North China Electric Power University, Beijing,102206, China

[49] Peking University, Beijing,100871, China

[50] Qufu Normal University, Qufu,273165, China

来源：

Physical Review Letters | 2024年 / 133卷 / 17期

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

D O I：

10.1103/PhysRevLett.133.171903

中图分类号：

学科分类号：

摘要：

The e+e-→Ds+Ds1(2536)- and e+e-→Ds+Ds2∗(2573)- processes are studied using data samples collected with the BESIII detector at center-of-mass energies from 4.530 to 4.946 GeV. The absolute branching fractions of Ds1(2536)-→D¯∗0K- and Ds2∗(2573)-→D¯0K- are measured for the first time to be (35.9±4.8±3.5)% and (37.4±3.1±4.6)%, respectively. The e+e-→Ds+Ds1(2536)- and e+e-→Ds+Ds2∗(2573)- cross sections are measured, and a resonant structure at around 4.6 GeV with a width of 50 MeV is observed in both processes with a statistical significance of 7.2σ and 15σ, respectively. The state is observed for the first time in e+e-→Ds+Ds2∗(2573)- and could be the Y(4626) found by the Belle oration in the Ds+Ds1(2536)- final state, since they have similar masses and widths. There is also evidence for a structure at around 4.75 GeV in both processes. © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the https://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

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