Partial wave analysis of $$ \psi (3686)\to \Lambda {\overline{\Sigma}}^0{\pi}^0 $$ + c.c.

A bstract Based on a sample of (2712 . 4 ± 14 . 3) × 10 6 ψ (3686) events collected with the BESIII detector, a partial wave analysis of the decay $$ \psi (3686)\to \Lambda {\overline{\Sigma}}^0{\pi}^0 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>ψ</mml:mi> <mml:mfenced> <mml:mn>3686</mml:mn> </mml:mfenced> <mml:mo>→</mml:mo> <mml:mi>Λ</mml:mi> <mml:msup> <mml:mover> <mml:mi>Σ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mn>0</mml:mn> </mml:msup> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> </mml:math> + c . c . is performed to investigate Λ * and Σ * resonances in the $$ {\pi}^0{\overline{\Sigma}}^0 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:msup> <mml:mover> <mml:mi>Σ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mn>0</mml:mn> </mml:msup> </mml:math> and π 0 Λ invariant mass distributions. Significant contributions are found from the Λ(1405), Λ(1520), Λ(1600), Λ(1670), Λ(1690), Λ(1800), Λ(1890), Λ(2325), Σ(1385), Σ(1660), Σ(1670), Σ(1750), and Σ(1910). The masses, widths, and production branching fractions for each component are determined. In addition, the branching fraction of $$ \psi (3686)\to \Lambda {\overline{\Sigma}}^0{\pi}^0 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>ψ</mml:mi> <mml:mfenced> <mml:mn>3686</mml:mn> </mml:mfenced> <mml:mo>→</mml:mo> <mml:mi>Λ</mml:mi> <mml:msup> <mml:mover> <mml:mi>Σ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mn>0</mml:mn> </mml:msup> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> </mml:math> + c . c . is measured to be (1 . 544 ± 0 . 013 ± 0 . 071) × 10 − 4 for the first time, where the first uncertainty is statistical and the second systematic.

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Journal
Journal of High Energy Physics
Published
2025-02-28
DOI
https://doi.org/10.1007/jhep02(2025)212
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1
Primary Topic
Quantum Chromodynamics and Particle Interactions
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article
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article

Partial wave analysis of $$ \psi (3686)\to \Lambda {\overline{\Sigma}}^0{\pi}^0 $$ + c.c.

Z. P. Yao, T. Xiang, K. Sun, J. J. Song et al.
1 citations
Journal of High Energy Physics
Quantum Chromodynamics and Particle Interactions
1.87
article

Partial wave analysis of $$ \psi (3686)\to \Lambda {\overline{\Sigma}}^0{\pi}^0 $$ + c.c.

Z. P. Yao, T. Xiang, K. Sun, J. J. Song, J. L. Shi, Y. H. Wu, W. M. Liu, Q. M. Li, Z. Y. Chen, Feng Liu, C. F. Redmer, H. S. Chen, Z. C. Zhou, X. B. Gao, Y. Q. Chen, Ch. Rosner, Y. S. Huang, J. K. Jiao, Y. H. Zhang, J. B. Liu, X. S. Qin, Y. F. Liang, Y. J. Zeng, V. Khachatryan, Z. J. Chen, X. Q. Yan, R. P. Zhao, H. H. Liu, Y. P. Pei, J. F. Chang, H. M. Liu, X. H. Xie, Y. H. Zheng, Y. Pan, G. B. Sun, H. F. Shen, Xiaolong Xu, F. Nerling, X. Y. Zhang, S. A. Cetin, Y. H. Xie, J. Libby, Wenjin Liu, M. Tang, L. Lavezzi, A. Denig, Q. L. Niu, Z. D. Zhang, F. Hanisch, Y. J. Song, H. Y. Chen, J. Dong, Y. G. Li, Yaqian Wang, K. Y. Liu, Y. Zhou, S. L. Hu, J. X. Zhang, A. Calcaterra, T. J. Jiang, M. Pelizaeus, S. Qian, F. Li, W. D. Li, Yanfeng Sun, M. M., A. Bortone, S. H. Zhu, C. Li, L. B. Guo, X. M. Xian, X. D. Yu, W. D. Niu, W. M. Song, Y. R. Hou, R. E. Mitchell, P. C. Hong, N. Berger, I. Denysenko, X. M. Zhang, B. Wang, M. X. Luo, P. Egorov, X. Y. Zhou, Z. S. Xu, Y. H. Zhan, X. L. Wang, W. C. 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Lu, G. S. Huang, S. Malde, M. Xu, Y. Jiang, Y Zhang, F. X. Lu, J. P. Wang, Y. J. Sun, Y. G. Xie, B. M. Zheng, X. Kui, X. M. Jing, Z. J. Li, K. X. Huang, W. Gradl, G. Chelkov, Xiaohong Zhou, J. Gutierrez, Y. Nefedov, X. L. Luo, Shulei Zhang, H. -R. Bao, H. C. Shi, J. L. Fu, W. Xu, H. J. Yang, J. F. Wu, Y. H. Yang, C. Wu, Z. H. Lei, Liang Zhao, Jingqing Zhang
article en
1 citations

Abstract

A bstract Based on a sample of (2712 . 4 ± 14 . 3) × 10 6 ψ (3686) events collected with the BESIII detector, a partial wave analysis of the decay $$ \psi (3686)\to \Lambda {\overline{\Sigma}}^0{\pi}^0 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>ψ</mml:mi> <mml:mfenced> <mml:mn>3686</mml:mn> </mml:mfenced> <mml:mo>→</mml:mo> <mml:mi>Λ</mml:mi> <mml:msup> <mml:mover> <mml:mi>Σ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mn>0</mml:mn> </mml:msup> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> </mml:math> + c . c . is performed to investigate Λ * and Σ * resonances in the $$ {\pi}^0{\overline{\Sigma}}^0 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:msup> <mml:mover> <mml:mi>Σ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mn>0</mml:mn> </mml:msup> </mml:math> and π 0 Λ invariant mass distributions. Significant contributions are found from the Λ(1405), Λ(1520), Λ(1600), Λ(1670), Λ(1690), Λ(1800), Λ(1890), Λ(2325), Σ(1385), Σ(1660), Σ(1670), Σ(1750), and Σ(1910). The masses, widths, and production branching fractions for each component are determined. In addition, the branching fraction of $$ \psi (3686)\to \Lambda {\overline{\Sigma}}^0{\pi}^0 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>ψ</mml:mi> <mml:mfenced> <mml:mn>3686</mml:mn> </mml:mfenced> <mml:mo>→</mml:mo> <mml:mi>Λ</mml:mi> <mml:msup> <mml:mover> <mml:mi>Σ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mn>0</mml:mn> </mml:msup> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> </mml:math> + c . c . is measured to be (1 . 544 ± 0 . 013 ± 0 . 071) × 10 − 4 for the first time, where the first uncertainty is statistical and the second systematic.

Journal of High Energy PhysicsVol. 2025(2)
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), 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), 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), Center for Theoretical Physics (PL), 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, Yantai University, Strong, University of Oxford, National Research Foundation, Deutsche Forschungsgemeinschaft, Rijksuniversiteit Groningen, National Natural Science Foundation of China, Chinese Academy of Sciences, National Research Foundation of Korea, University of Jinan, Vetenskapsrådet, Zhengzhou University, University of Science and Technology Liaoning, Natural Science Foundation of Gansu Province, Zhejiang University, Università degli Studi del Piemonte Orientale, Università degli Studi di Torino, Wuhan University, Uppsala Universitet, Yunnan University, University of South China, University of Science and Technology of China, Istituto Nazionale di Fisica Nucleare, CAS Center for Excellence in Particle Physics, Shanghai Key Laboratory for Particle Physics and Cosmology, Institute of High Energy Physics, Fundamental Research Funds for the Central Universities, Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center)
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Quantum Chromodynamics and Particle Interactions
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