The decay τ→3πντ and axial-vector meson a1 in the NJL model

IF 1.5 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Modern Physics Letters A Pub Date : 2023-09-21 DOI:10.1142/s0217732323501109

Mikhail K. Volkov, Kanat Nurlan, Aleksey A. Pivovarov

引用次数: 0

Abstract

The branching fractions of [Formula: see text] and [Formula: see text] are calculated within the chiral NJL model. Features of the axial-vector [Formula: see text] meson which play an important role in describing the [Formula: see text] decays are discussed. Permissible values for the mass and width of the [Formula: see text] meson are considered in accordance with the latest experiments.

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NJL模型中衰变τ→3πντ和轴矢量介子a1

在手性NJL模型中计算[公式:见文]和[公式:见文]的分支分数。讨论了在描述[公式:见文本]衰变中起重要作用的轴矢量[公式:见文本]介子的特征。介子的质量和宽度的允许值是根据最新的实验考虑的。

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

Modern Physics Letters A 物理-物理：核物理

CiteScore

3.10

自引率

7.10%

发文量

186

审稿时长

3 months

期刊介绍： This letters journal, launched in 1986, consists of research papers covering current research developments in Gravitation, Cosmology, Astrophysics, Nuclear Physics, Particles and Fields, Accelerator physics, and Quantum Information. A Brief Review section has also been initiated with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.