Measurement of branching fractions for Λc+ →n KS0 π+ and Λc+ →n KS0 K+

BESIII Collaboration

doi:10.1103/PhysRevD.109.072010

Measurement of branching fractions for Λc+ →n KS0 π+ and Λc+ →n KS0 K+

BESIII Collaboration

Instituto de Alta Investigación

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
National Centre for Nuclear Research
Mongolian Academy of Sciences
Carnegie Mellon University
University of Münster
Wuhan University
University of Chinese Academy of Sciences
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
Henan Normal University
University of Hawai'i at Mānoa
Suranaree University of Technology
South China Normal University
University of the Punjab
Indiana University Bloomington
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
Beijing Institute of Petrochemical Technology
Lanzhou University
IBA
Sichuan University
Guangxi Normal University
Shanxi University
Central China Normal University
Henan University of Science and Technology
University of South China
Central South University
Zhejiang University
Goethe University Frankfurt
COMSATS University Islamabad
University of Perugia
Universidad de Tarapacá
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

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Resumen

Based on 4.5 fb-1 of e+e- collision data accumulated at center-of-mass energies between 4599.53 and 4698.82 MeV with the BESIII detector, we measure the absolute branching fraction of the Cabibbo-favored decay Λc+→nKS0π+ with the precision improved by a factor of 2.8 and report the first evidence for the singly-Cabibbo-suppressed decay Λc+→nKS0K+. The branching fractions for Λc+→nKS0π+ and Λc+→nKS0K+ are determined to be (1.86±0.08±0.04)×10-2 and (3.9-1.4+1.7±0.3)×10-4, respectively, where the first uncertainties are statistical and the second ones are systematic.

Idioma original	Inglés
Número de artículo	072010
Publicación	Physical Review D
Volumen	109
N.º	7
DOI	https://doi.org/10.1103/PhysRevD.109.072010
Estado	Publicada - 1 abr 2024

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title = "Measurement of branching fractions for Λc+ →n KS0 π+ and Λc+ →n KS0 K+",

abstract = "Based on 4.5 fb-1 of e+e- collision data accumulated at center-of-mass energies between 4599.53 and 4698.82 MeV with the BESIII detector, we measure the absolute branching fraction of the Cabibbo-favored decay Λc+→nKS0π+ with the precision improved by a factor of 2.8 and report the first evidence for the singly-Cabibbo-suppressed decay Λc+→nKS0K+. The branching fractions for Λc+→nKS0π+ and Λc+→nKS0K+ are determined to be (1.86±0.08±0.04)×10-2 and (3.9-1.4+1.7±0.3)×10-4, respectively, where the first uncertainties are statistical and the second ones are systematic.",

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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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 - Based on 4.5 fb-1 of e+e- collision data accumulated at center-of-mass energies between 4599.53 and 4698.82 MeV with the BESIII detector, we measure the absolute branching fraction of the Cabibbo-favored decay Λc+→nKS0π+ with the precision improved by a factor of 2.8 and report the first evidence for the singly-Cabibbo-suppressed decay Λc+→nKS0K+. The branching fractions for Λc+→nKS0π+ and Λc+→nKS0K+ are determined to be (1.86±0.08±0.04)×10-2 and (3.9-1.4+1.7±0.3)×10-4, respectively, where the first uncertainties are statistical and the second ones are systematic.

AB - Based on 4.5 fb-1 of e+e- collision data accumulated at center-of-mass energies between 4599.53 and 4698.82 MeV with the BESIII detector, we measure the absolute branching fraction of the Cabibbo-favored decay Λc+→nKS0π+ with the precision improved by a factor of 2.8 and report the first evidence for the singly-Cabibbo-suppressed decay Λc+→nKS0K+. The branching fractions for Λc+→nKS0π+ and Λc+→nKS0K+ are determined to be (1.86±0.08±0.04)×10-2 and (3.9-1.4+1.7±0.3)×10-4, respectively, where the first uncertainties are statistical and the second ones are systematic.

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DO - 10.1103/PhysRevD.109.072010

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SN - 2470-0010

VL - 109

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - 072010

ER -

Measurement of branching fractions for Λc+ →n KS0 π+ and Λc+ →n KS0 K+

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