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Bibliographic Details
Main Authors: Zhang, Sheng-Qi, Zhang, Xuan-Heng, Qiao, Cong-Feng
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2402.15088
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Table of Contents:
  • We investigate the hyperon semileptonic decays within the framework of QCD sum rules. The flavor $ SU(3) $ symmetry breaking effects are analyzed via the relevant form factors and corresponding branching fractions. Employing the $ z $-series parameterization to capture the $ q^2 $ dependence of form factors, we calculate the hyperon semileptonic decay rates and confront them with the recent experimental measurements. Moreover, we calculate as well the non-standard tensor form factors, which involve certain new physics beyond the standard model.