Observation of the J /ψ and ψ (3686) decays into η ς+ ς  ̄ -

The BESIII collaboration

doi:10.1103/PhysRevD.106.112007

Observation of the J /ψ and ψ (3686) decays into η ς+ ς ̄ -

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
Ruhr University Bochum
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
National Centre for Nuclear Research
Mongolian Academy of Sciences
University of Münster
Carnegie Mellon University
Wuhan University
University of Chinese Academy of Sciences
Istinye University
Nankai University
Moscow Institute of Physics and Technology
Soochow University
Nanjing University
Tsinghua University
CAS - Institute of Modern Physics
Hunan University
Shandong University
Yunnan University
Helmholtz Institute Mainz
Liaoning University
Jilin University
Zhengzhou 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
Nanjing Normal University
Shandong Normal University
Fudan University
Henan Normal University
University of Hawai'i at Mānoa
Suranaree University of Technology
South China Normal University
University of the Punjab
Indiana University Bloomington
Huangshan College
University of Jinan
University of Groningen
China University of Geosciences, Wuhan
Justus Liebig University Giessen
Indian Institute of Technology Madras
Lanzhou University
Qufu Normal University
Shanxi Normal University
Beijing Institute of Petrochemical Technology
Sichuan University
Guangxi Normal University
Shanxi University
Central China Normal University
Henan University of Science and Technology
University of South China
Henan University of Technology
Central South University
Zhejiang University
Goethe University Frankfurt
COMSATS University Islamabad
IBA
University of Perugia
Petersburg Nuclear Physics Institute (PNPI)
Hunan Normal University
Near East University
North China Electric Power University
Hebei University
Hangzhou Normal University
Yantai University
Shanghai Jiao Tong University
Ministry of Education of the People's Republic of China
China Center of Advanced Science and Technology World Laboratory
Beihang University
Xinyang Normal University
University of Science and Technology Liaoning

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

7 Scopus citations

Abstract

The decays J/ψ→ης+ς¯- and ψ(3686)→ης+ς¯- are observed for the first time, using (10087±44)×106 J/ψ and (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector at the BEPCII collider. We determine the branching fractions of these two decays to be B(J/ψ→ης+ς¯-)=(6.34±0.21±0.37)×10-5 and B(ψ(3686)→ης+ς¯-)=(9.59±2.37±0.61)×10-6, where the first uncertainties are statistical and the second are systematic. The ratio of these two branching fractions is determined to be B(ψ(3686)→ης+ς¯-)B(J/ψ→ης+ς¯-)=(15.1±3.8)%, which is in agreement with the "12% rule."

Original language	English
Article number	112007
Journal	Physical Review D
Volume	106
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.106.112007
State	Published - 1 Dec 2022

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10.1103/PhysRevD.106.112007

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@article{ea7719a5d25944afa6b65aff46092b1a,

title = "Observation of the J /ψ and ψ (3686) decays into η ς+ ς{\= } -",

abstract = "The decays J/ψ→ης+ς¯- and ψ(3686)→ης+ς¯- are observed for the first time, using (10087±44){\texttimes}106 J/ψ and (448.1±2.9){\texttimes}106 ψ(3686) events collected with the BESIII detector at the BEPCII collider. We determine the branching fractions of these two decays to be B(J/ψ→ης+ς¯-)=(6.34±0.21±0.37){\texttimes}10-5 and B(ψ(3686)→ης+ς¯-)=(9.59±2.37±0.61){\texttimes}10-6, where the first uncertainties are statistical and the second are systematic. The ratio of these two branching fractions is determined to be B(ψ(3686)→ης+ς¯-)B(J/ψ→ης+ς¯-)=(15.1±3.8)\%, which is in agreement with the {"}12\% rule.{"}",

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

note = "Publisher Copyright: {\textcopyright} 2022 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.",

year = "2022",

month = dec,

day = "1",

doi = "10.1103/PhysRevD.106.112007",

language = "English",

volume = "106",

journal = "Physical Review D",

issn = "2470-0010",

number = "11",

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TY - JOUR

T1 - Observation of the J /ψ and ψ (3686) decays into η ς+ ς ̄ -

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Albrecht, M.

AU - Kabana, S.

AU - The BESIII collaboration

N1 - Publisher Copyright: © 2022 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 - 2022/12/1

Y1 - 2022/12/1

N2 - The decays J/ψ→ης+ς¯- and ψ(3686)→ης+ς¯- are observed for the first time, using (10087±44)×106 J/ψ and (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector at the BEPCII collider. We determine the branching fractions of these two decays to be B(J/ψ→ης+ς¯-)=(6.34±0.21±0.37)×10-5 and B(ψ(3686)→ης+ς¯-)=(9.59±2.37±0.61)×10-6, where the first uncertainties are statistical and the second are systematic. The ratio of these two branching fractions is determined to be B(ψ(3686)→ης+ς¯-)B(J/ψ→ης+ς¯-)=(15.1±3.8)%, which is in agreement with the "12% rule."

AB - The decays J/ψ→ης+ς¯- and ψ(3686)→ης+ς¯- are observed for the first time, using (10087±44)×106 J/ψ and (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector at the BEPCII collider. We determine the branching fractions of these two decays to be B(J/ψ→ης+ς¯-)=(6.34±0.21±0.37)×10-5 and B(ψ(3686)→ης+ς¯-)=(9.59±2.37±0.61)×10-6, where the first uncertainties are statistical and the second are systematic. The ratio of these two branching fractions is determined to be B(ψ(3686)→ης+ς¯-)B(J/ψ→ης+ς¯-)=(15.1±3.8)%, which is in agreement with the "12% rule."

UR - https://www.scopus.com/pages/publications/85144945418

U2 - 10.1103/PhysRevD.106.112007

DO - 10.1103/PhysRevD.106.112007

M3 - Article

AN - SCOPUS:85144945418

SN - 2470-0010

VL - 106

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112007

ER -

Observation of the J /ψ and ψ (3686) decays into η ς+ ς ̄ -

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