Search for the decay χc1 (3872) →π+π-χc1

The BESIII collaboration

doi:10.1103/PhysRevD.109.L071101

Search for the decay χc1 (3872) →π+π-χc1

The BESIII collaboration

Institute of Higher Research

CAS - Institute of High Energy Physics
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Uppsala University
Zhengzhou University
Chinese Academy of Sciences
Johannes Gutenberg University Mainz
University of Turin
National Institute for Nuclear Physics
Liaoning Normal University
University of Science and Technology of China
Southeast University, Nanjing
Joint Institute for Nuclear Research
Peking University
University of Chinese Academy of Sciences
National Centre for Nuclear Research
Mongolian Academy of Sciences
Carnegie Mellon University
University of Münster
Wuhan University
Istinye University
Xinyang Normal University
Nankai University
Moscow Institute of Physics and Technology
Soochow University
Nanjing University
North China Electric Power University
Tsinghua University
CAS - Institute of Modern Physics
Jilin University
Hunan University
Chung-Ang University
Ruhr University Bochum
Shandong University
Yunnan University
Helmholtz Institute Mainz
University of Jinan
Liaoning University
University of Eastern Piedmont
Sun Yat-Sen University
University of Oxford
University of Ferrara
University of Manchester
GSI Helmholtz Centre for Heavy Ion Research
Guangxi University
Henan University of Technology
Nanjing Normal University
Shandong Normal University
Fudan University
Indiana University Bloomington
Henan Normal University
University of Hawai'i at Mānoa
Suranaree University of Technology
South China Normal University
University of the Punjab
Hangzhou Normal University
Huangshan College
University of Groningen
China University of Geosciences, Wuhan
Justus Liebig University Giessen
Indian Institute of Technology Madras
Qufu Normal University
Renmin University of China
Lanzhou University
Sichuan University
Guangxi Normal University
Shanxi University
Central China Normal University
Henan University of Science and Technology
Central South University
Zhejiang University
Goethe University Frankfurt
COMSATS University Islamabad
IBA
University of Perugia
Universidad de Tarapacá
University of South China
Petersburg Nuclear Physics Institute (PNPI)
Hunan Normal University
Shanghai Jiao Tong University
Ministry of Education of the People's Republic of China
Shanxi Normal University
Near East University
Hebei University
University of Science and Technology Liaoning
China Center of Advanced Science and Technology World Laboratory
Inner Mongolia University
Yantai University
Beihang University
Henan University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Using a data sample corresponding to an integrated luminosity of 10.9 fb-1 collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for the decay χc1(3872)→π+π-χc1 in the radiative production e+e-→γχc1(3872). No significant signal is observed, and the ratio for the branching fraction of χc1(3872)→π+π-χc1 to χc1(3872)→π+π-J/ψ is measured as RB[χc1(3872)→π+π-χc1]B[χc1(3872)→π+π-J/ψ]<0.18 at 90% confidence level. An upper limit on the product of the cross section σ[e+e-→γχc1(3872)] and the branching fraction B[χc1(3872)→π+π-χc1] at each center-of-mass energy is also given. These measurements favor the nonconventional charmonium nature of the χc1(3872) state.

Original language	English
Article number	L071101
Journal	Physical Review D
Volume	109
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.109.L071101
State	Published - 1 Apr 2024

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10.1103/PhysRevD.109.L071101

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title = "Search for the decay χc1 (3872) →π+π-χc1",

abstract = "Using a data sample corresponding to an integrated luminosity of 10.9 fb-1 collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for the decay χc1(3872)→π+π-χc1 in the radiative production e+e-→γχc1(3872). No significant signal is observed, and the ratio for the branching fraction of χc1(3872)→π+π-χc1 to χc1(3872)→π+π-J/ψ is measured as RB[χc1(3872)→π+π-χc1]B[χc1(3872)→π+π-J/ψ]<0.18 at 90\% confidence level. An upper limit on the product of the cross section σ[e+e-→γχc1(3872)] and the branching fraction B[χc1(3872)→π+π-χc1] at each center-of-mass energy is also given. These measurements favor the nonconventional charmonium nature of the χc1(3872) state.",

author = "M. Ablikim and Achasov, \{M. N.\} and P. Adlarson and Ai, \{X. C.\} and S. Kabana and \{The BESIII collaboration\}",

note = "Publisher Copyright: {\textcopyright} 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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T1 - Search for the decay χc1 (3872) →π+π-χc1

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ai, X. C.

AU - Kabana, S.

AU - The BESIII collaboration

N1 - Publisher Copyright: © 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.

PY - 2024/4/1

Y1 - 2024/4/1

N2 - Using a data sample corresponding to an integrated luminosity of 10.9 fb-1 collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for the decay χc1(3872)→π+π-χc1 in the radiative production e+e-→γχc1(3872). No significant signal is observed, and the ratio for the branching fraction of χc1(3872)→π+π-χc1 to χc1(3872)→π+π-J/ψ is measured as RB[χc1(3872)→π+π-χc1]B[χc1(3872)→π+π-J/ψ]<0.18 at 90% confidence level. An upper limit on the product of the cross section σ[e+e-→γχc1(3872)] and the branching fraction B[χc1(3872)→π+π-χc1] at each center-of-mass energy is also given. These measurements favor the nonconventional charmonium nature of the χc1(3872) state.

AB - Using a data sample corresponding to an integrated luminosity of 10.9 fb-1 collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for the decay χc1(3872)→π+π-χc1 in the radiative production e+e-→γχc1(3872). No significant signal is observed, and the ratio for the branching fraction of χc1(3872)→π+π-χc1 to χc1(3872)→π+π-J/ψ is measured as RB[χc1(3872)→π+π-χc1]B[χc1(3872)→π+π-J/ψ]<0.18 at 90% confidence level. An upper limit on the product of the cross section σ[e+e-→γχc1(3872)] and the branching fraction B[χc1(3872)→π+π-χc1] at each center-of-mass energy is also given. These measurements favor the nonconventional charmonium nature of the χc1(3872) state.

UR - https://www.scopus.com/pages/publications/85190102293

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DO - 10.1103/PhysRevD.109.L071101

M3 - Article

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SN - 2470-0010

VL - 109

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - L071101

ER -

Search for the decay χc1 (3872) →π+π-χc1

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