Search for the charmonium weak decays $$ J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}. $$ and $$ J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}. $$

A bstract Based on (10087 ± 44) × 10 6 J / ψ events recorded with the BESIII detector, we search for the rare charmonium weak decays $$ J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}. $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>ρ</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:math> and $$ J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}. $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:math> No signal is observed, and upper limits on the branching fractions at the 90% confidence level are set as $$ \mathcal{B}\left(J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}.\right)&lt;8.0\times {10}^{-7} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> <mml:mfenced> <mml:mrow> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>ρ</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:mrow> </mml:mfenced> <mml:mo>&lt;</mml:mo> <mml:mn>8.0</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>7</mml:mn> </mml:mrow> </mml:msup> </mml:math> and $$ \mathcal{B}\left(J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}.\right)&lt;4.1\times {10}^{-7} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> <mml:mfenced> <mml:mrow> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:mrow> </mml:mfenced> <mml:mo>&lt;</mml:mo> <mml:mn>4.1</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>7</mml:mn> </mml:mrow> </mml:msup> </mml:math> . Our results provide the most stringent experimental constraints on these decays.

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Journal
Journal of High Energy Physics
Published
2025-12-11
DOI
https://doi.org/10.1007/jhep12(2025)077
Primary Topic
Quantum Chromodynamics and Particle Interactions
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article
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article

Search for the charmonium weak decays $$ J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}. $$ and $$ J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}. $$

F. Hanisch, M. Wolke, M. Kavatsyuk, A. Bortone et al.
Journal of High Energy Physics
Quantum Chromodynamics and Particle Interactions
article

Search for the charmonium weak decays $$ J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}. $$ and $$ J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}. $$

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article en

Abstract

A bstract Based on (10087 ± 44) × 10 6 J / ψ events recorded with the BESIII detector, we search for the rare charmonium weak decays $$ J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}. $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>ρ</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:math> and $$ J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}. $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:math> No signal is observed, and upper limits on the branching fractions at the 90% confidence level are set as $$ \mathcal{B}\left(J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}.\right)&lt;8.0\times {10}^{-7} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> <mml:mfenced> <mml:mrow> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>ρ</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:mrow> </mml:mfenced> <mml:mo>&lt;</mml:mo> <mml:mn>8.0</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>7</mml:mn> </mml:mrow> </mml:msup> </mml:math> and $$ \mathcal{B}\left(J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}.\right)&lt;4.1\times {10}^{-7} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> <mml:mfenced> <mml:mrow> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>−</mml:mo> </mml:msubsup> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>+</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> <mml:mi>c</mml:mi> <mml:mo>.</mml:mo> </mml:mrow> </mml:mfenced> <mml:mo>&lt;</mml:mo> <mml:mn>4.1</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>7</mml:mn> </mml:mrow> </mml:msup> </mml:math> . Our results provide the most stringent experimental constraints on these decays.

Journal of High Energy PhysicsVol. 2025(12)
Goethe University Frankfurt (DE), University of Science and Technology Liaoning (CN), Liaoning University (CN), Università degli Studi del Piemonte Orientale “Amedeo Avogadro” (IT), Uppsala University (SE), University of Science and Technology of China (CN), University of Hawaii System (US), Mongolian Academy of Sciences (MN), Central South University (CN), Guangxi University (CN), Nanjing Normal University (CN), Liaoning Normal University (CN), North China Electric Power University (CN), Moscow Institute of Physics and Technology (RU), Shandong University (CN), COMSATS University Islamabad (PK), Hangzhou Normal University (CN), Hunan University (CN), Henan University of Science and Technology (CN), University of Groningen (NL), GSI Helmholtz Centre for Heavy Ion Research (DE), University of the Punjab (PK), Hunan Normal University (CN), Henan University (CN), Shanghai Jiao Tong University (CN), Yantai University (CN), University of Tarapacá (CL), Guangxi University of Science and Technology (CN), South China Normal University (CN), Novosibirsk State University (RU), Yunnan University (CN), Jilin University (CN), Johannes Gutenberg University Mainz (DE), Justus-Liebig-Universität Gießen (DE), University of Ferrara (IT), Qufu Normal University (CN), Peking University (CN), Nankai University (CN), University of Münster (DE), Sichuan University (CN), Indian Institute of Technology Madras (IN), Fudan University (CN), Inner Mongolia University (CN), University of Perugia (IT), Kurchatov Institute (RU), Shandong Normal University (CN), University of Manchester (GB), Guangxi Normal University (CN), China University of Geosciences (CN), Huangshan University (CN), Joint Institute for Nuclear Research (RU), University of Jinan (CN), Henan University of Technology (CN), University of Bristol (GB), Wuhan University (CN), Zhengzhou University (CN), University of Oxford (GB), Central China Normal University (CN), National Centre for Nuclear Research (PL), Institute of Particle Physics (CA), Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara (IT), Helmholtz Institute Mainz (DE), Istinye University (TR), Institute of Modern Physics (CN), Institute of Nuclear and Particle Physics (GR), Jilin Medical University (CN), Shanxi University of Traditional Chinese Medicine (CN), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT), Piedmont University (US), Bristol Robotics Laboratory (GB), Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (IT), University of Chinese Academy of Sciences (CN), Hebei University (CN), Budker Institute of Nuclear Physics (RU), École Polytechnique Fédérale de Lausanne (CH), China Center of Advanced Science and Technology (CN), University of Turin (IT), Indiana University (US), Chung-Ang University (KR), Near East University (CY), Carnegie Mellon University (US), Henan Normal University (CN), Zhejiang University (CN), Lanzhou University (CN), Renmin University of China (CN), Suranaree University of Technology (TH), Beihang University (CN), Nanjing University (CN), Ruhr University Bochum (DE), University of South China (CN), Shanxi Normal University (CN), Tsinghua University (CN)
U.S. Department of Energy, Strong, National Research Foundation, Deutsche Forschungsgemeinschaft, National Natural Science Foundation of China, Chinese Academy of Sciences, National Research Foundation of Korea, Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet, Istituto Nazionale di Fisica Nucleare, Shanghai Key Laboratory for Particle Physics and Cosmology, Science and Technology Facilities Council, Institute of High Energy Physics
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Quantum Chromodynamics and Particle Interactions
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