Search for the leptonic decay *

Abstract We search for the leptonic decay using an collision data sample with an integrated luminosity of 20.3 fb collected with the BESIII detector at a center-of-mass energy of 3.773 GeV. Significant signal is not observed, and an upper limit on the branching fraction of is set as , at a confidence level of 90%. Our upper limit is an order of magnitude smaller than the previous limit for this decay mode.

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Publication Details

Journal
Chinese Physics C
Published
2025-03-17
DOI
https://doi.org/10.1088/1674-1137/adc11d
Primary Topic
Particle physics theoretical and experimental studies
Type
article
Field-Weighted Citation Impact
0.00

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article

Search for the leptonic decay *

B. C. Ke
Chinese Physics C
Particle physics theoretical and experimental studies
article

Search for the leptonic decay *

B. C. Ke
article en

Abstract

Abstract We search for the leptonic decay using an collision data sample with an integrated luminosity of 20.3 fb collected with the BESIII detector at a center-of-mass energy of 3.773 GeV. Significant signal is not observed, and an upper limit on the branching fraction of is set as , at a confidence level of 90%. Our upper limit is an order of magnitude smaller than the previous limit for this decay mode.

Chinese Physics CVol. 49(6)
Goethe University Frankfurt (DE), University of Hawaiʻi at Mānoa (US), Liaoning University (CN), Università degli Studi del Piemonte Orientale “Amedeo Avogadro” (IT), Uppsala University (SE), University of Hawaii System (US), Institute of Business Administration Karachi (PK), Moscow Institute of Physics and Technology (RU), Shandong University (CN), Sun Yat-sen University (CN), COMSATS University Islamabad (PK), Hangzhou Normal University (CN), University of Groningen (NL), GSI Helmholtz Centre for Heavy Ion Research (DE), University of the Punjab (PK), Shanghai Jiao Tong University (CN), University of Tarapacá (CL), Novosibirsk State University (RU), Jilin University (CN), Johannes Gutenberg University Mainz (DE), Justus-Liebig-Universität Gießen (DE), University of Ferrara (IT), University of Münster (DE), Indian Institute of Technology Madras (IN), Inner Mongolia University (CN), University of Perugia (IT), Kurchatov Institute (RU), University of Manchester (GB), Joint Institute for Nuclear Research (RU), University of Bristol (GB), University of Oxford (GB), Kavli Institute for Particle Astrophysics and Cosmology (US), National Centre for Nuclear Research (PL), Institute of Physics and Technology (MN), Institute of Particle Physics (CA), Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara (IT), Helmholtz Institute Mainz (DE), Indiana University Bloomington (US), Istinye University (TR), Siberian Branch of the Russian Academy of Sciences (RU), Institute of High Energy Physics (CN), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT), Tyndall Centre (GB), ILMA University (PK), Bristol Robotics Laboratory (GB), Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (IT), University of Chinese Academy of Sciences (CN), Budker Institute of Nuclear Physics (RU), University of Turin (IT), Chung-Ang University (KR), Near East University (CY), Carnegie Mellon University (US), Suranaree University of Technology (TH), Ruhr University Bochum (DE)
National Natural Science Foundation of China
Openalex Percentile: Top 97%
Particle physics theoretical and experimental studies
DOIOpen Access PDFOpenAlex
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