Forward-backward asymmetries in Λb→Λl~+l~- in the Bethe-Salpeter equation approach

被引：0

作者：

刘亮亮 ^{[1
]}

崔苏君 ^{[1
]}

徐晶 ^{[2
]}

郭新恒 ^{[3
]}

机构：

[1] College of Physics and information engineering,Shanxi Normal University

[2] Department of Physics,Yan-Tai University

[3] College of Nuclear Science and Technology,Beijing Normal University

来源：

Chinese Physics C | 2022年 / 09期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

O572.33 [介子];

学科分类号：

摘要：

Using the Bethe-Salpeter equation(BSE),we investigate the forward-backward asymmetries(AFB) in Λb→Λl~+l~-(l=e,μ,τ) in the quark-diquark model.This approach provides precise form factors that are different from those of quantum chromodynamics (QCD) sum rules.We calculate the rare decay form factors for Λb→Λl~+l~-b and investigate the (integrated) forward-backward asymmetries in these decay channels.We observe the integrated ■,and ■;the hadron side asymmetries ■the lepton-hadron side asymmetries ■;and the longitudinal polarization fractions ■.

引用

页码：98 / 106

页数：9

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