Study of the \({{e}^{ + }}{{e}^{ - }} \to K_{S}^{0}{{K}^{ \pm }}{{\pi }^{ \mp }}\) Process with the CMD-3 Detector

IF 0.6 4区物理与天体物理 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Pub Date : 2025-05-20 DOI:10.1134/S1063779624701752

G. V. Fedotovich, A. A. Uskov, S. S. Gribanov

引用次数: 0

Abstract

The results of the cross section measurement of the process \({{e}^{ + }}{{e}^{ - }} \to K_{S}^{0}{{K}^{ \pm }}{{\pi }^{ \mp }}\) at \({{e}^{ + }}{{e}^{ - }}\) collider VEPP-2000 are presented. The analysis is based on the 115.4 pb^–1 integrated luminosity accumulated by the CMD-3 detector during several runs with energy scan. The cross section was approximated in the frame of the VMD model, using isospin algebra to obtain the resonance parameters for the isoscalar \(\phi (1680)\) and isovector \(\rho (1450)\) mesons. The data of the process \({{e}^{ + }}{{e}^{ - }} \to K_{S}^{0}{{K}^{ \pm }}{{\pi }^{ \mp }}\) were also used to estimate hadronic contribution to \({{(g - 2)}_{\mu }}\) of muon: \((0.86 \pm {{0.01}_{{{\text{stat}}}}} \pm {{0.04}_{{{\text{syst}}}}}) \times {{10}^{{ - 10}}}\).

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用CMD-3检测器研究\({{e}^{ + }}{{e}^{ - }} \to K_{S}^{0}{{K}^{ \pm }}{{\pi }^{ \mp }}\)过程

本文介绍了在\({{e}^{ + }}{{e}^{ - }}\)对撞机VEPP-2000上对该过程\({{e}^{ + }}{{e}^{ - }} \to K_{S}^{0}{{K}^{ \pm }}{{\pi }^{ \mp }}\)的截面测量结果。该分析是基于ccd -3探测器在能量扫描的几次运行中积累的115.4 pb-1积分光度。在VMD模型框架下对截面进行近似，利用同位旋代数得到等标量\(\phi (1680)\)和等矢量\(\rho (1450)\)介子的共振参数。过程\({{e}^{ + }}{{e}^{ - }} \to K_{S}^{0}{{K}^{ \pm }}{{\pi }^{ \mp }}\)的数据也被用来估计μ子：\((0.86 \pm {{0.01}_{{{\text{stat}}}}} \pm {{0.04}_{{{\text{syst}}}}}) \times {{10}^{{ - 10}}}\)对\({{(g - 2)}_{\mu }}\)的强子贡献。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Particles and Nuclei 物理-物理：粒子与场物理

CiteScore

1.00

自引率

0.00%

发文量

116

审稿时长

6-12 weeks

期刊介绍： The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.