New signature of low mass Z′ in J/ψ decays* * Supported in part by the National Key Research and Development Program of China under (2020YFC2201501) and the National Natural Science Foundation of China (NSFC) (12347103, 12205063)

IF 3.6 2区物理与天体物理 Q1 PHYSICS, NUCLEAR

中国物理C Pub Date : 2024-08-01 DOI:10.1088/1674-1137/ad53b6

Chao-Qiang Geng, Chia-Wei Liu, Jiabao Zhang

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引用次数: 0

Abstract

We explored a new approach to search for a low-mass

particle through

decays by identifying its existence through parity-violating phenomena in the isospin-violating final states of

and the corresponding charge conjugated states of

. Our investigation centered on a generation-independent and leptophobic

with mass below 10 GeV. Given the present experimental conditions at Beijing Spectrometer III (BESIII) and the anticipated opportunities at the Super Tau Charm Factory (STCF), we conducted Monte-Carlo simulations to predict possible events at both facilities. Notably, we foresee a substantial enhancement in the precision of the lower limit estimation of

as well as a reduction in statistical uncertainty with upcoming STCF experiments. Furthermore, it is essential to highlight that a null result in the measurement of

would impose stringent constraints, requiring the

couplings to be in the order of

查看原文本刊更多论文

低质量Z′在J/ψ衰变中的新特征* * 国家重点研发计划（2020YFC2201501）和国家自然科学基金（12347103，12205063）的部分资助

我们探索了一种通过衰变寻找低质量粒子的新方法，即通过等空间违反最终态的奇偶性现象和相应的电荷共轭态的奇偶性现象来确定它的存在。我们的研究集中在质量低于10 GeV的不依赖于世代的和轻微的粒子上。考虑到北京谱仪三期（BESIII）目前的实验条件和超级头符厂（STCF）的预期机会，我们进行了蒙特卡洛模拟，以预测这两个设施可能发生的事件。值得注意的是，我们预计即将进行的 STCF 实验将大大提高下限估计的精度，并减少统计不确定性。此外，有必要强调的是，如果测量结果为空，将会带来严格的限制，要求耦合在......的数量级。

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来源期刊

中国物理C 物理-物理：核物理

CiteScore

6.50

自引率

8.30%

发文量

8976

审稿时长

1.3 months

期刊介绍： Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of: Particle physics; Nuclear physics; Particle and nuclear astrophysics; Cosmology; Accelerator physics. The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication. The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal. The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.