Light axion-like particles and the pseudoscalar mesonic decays M→M′νν

被引：0
|
作者：
Dai, Guo-Qiang [1 ,2 ]
Yue, Chong-Xing [1 ,2 ]
Bu, Yang-Yang [1 ,2 ]
Wang, Yi-Hang [1 ,2 ]
机构：
[1] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
[2] Liaoning Normal Univ, Ctr Theoret & Expt High Energy Phys, Dalian 116029, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2024年 / 76卷 / 09期
基金：
中国国家自然科学基金;
关键词：
axion-like particle; pseudoscalar mesons; branching ratios;
D O I：
10.1088/1572-9494/ad5277
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The axion-like particle (ALP) is one kind of the best-motivated new particles. We consider its production from the pseudoscalar mesonic decays M -> M ' a , with M being a pseudoscalar meson B or K. The upper limits on the flavor-conserving ALP-quark coupling parameter g u are obtained by assuming the ALP to be an invisible particle. We find that the most severe constraint on g u comes from the decay K+->pi(+)nu nu for 0.05 GeV <= M-a <= 0.35 GeV, while the decays B-+,B-0 -> K-+,K-0 nu nu and B-+,B-0 ->pi(+,0)nu nu can also generate significant constraints.
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页数：5
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