计算分支比例

IF 1.8 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

EPL Pub Date : 2024-07-08 DOI:10.1209/0295-5075/ad5909

Elnaz Amirkhanlou and Behnam Mohammadi

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引用次数: 0

摘要

LHCb 协作小组首次报告了该衰变的分支分数为。他们测量了该衰变相对于正常化通道的分支率为。在这项工作中，我们使用一个基于因子化方法框架的简单模型，研究了 μ 和强耦合值介子在三种尺度下的和衰变。我们得到了衰变于和衰变于。我们还估算出了与实验结果相一致的。

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Calculation of the ratio of branching fractions

The LHCb Collaboration has reported for the first time the branching fraction for the decay as . They measured the branching fraction of this decay relative to that of the normalization channel as . In this work, we have studied the and decays in three scales of μ and strong coupling values mesons using a simple model based on the framework of the factorization approach presented. We have obtained for decay at and for decay at . We have also estimated at which is consistent with the experimental result.

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来源期刊

EPL 物理-物理：综合

CiteScore

3.30

自引率

5.60%

发文量

332

审稿时长

1.9 months

期刊介绍： General physics – physics of elementary particles and fields – nuclear physics – atomic, molecular and optical physics – classical areas of phenomenology – physics of gases, plasmas and electrical discharges – condensed matter – cross-disciplinary physics and related areas of science and technology. Letters submitted to EPL should contain new results, ideas, concepts, experimental methods, theoretical treatments, including those with application potential and be of broad interest and importance to one or several sections of the physics community. The presentation should satisfy the specialist, yet remain understandable to the researchers in other fields through a suitable, clearly written introduction and conclusion (if appropriate). EPL also publishes Comments on Letters previously published in the Journal.