NDLI: Hyperon weak radiative decay *

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Hyperon weak radiative decay *

Content Provider	Scilit
Author	Niu, Peng-Yu Richard, Jean-Marc Wang, Qian Zhao, Qiang
Copyright Year	2020
Description	Journal: Chinese Physics C We revisit the hyperon weak radiative decays in the framework of the non-relativistic constituent quark model. This study confirms the nonlocal feature of the hyperon weak radiative transition operators, which are dominated by the pole terms, and an overall self-consistent description of the available experimental data for the Cabibbo-favored hyperon weak radiative decays is presented. It provides a natural mechanism for evading the Hara theorem, where sizeable parity-violating contributions can come from the intermediate orbital excitations. Cancellations between pole terms also explain the significant SU(3) flavor symmetry breaking manifested by the experimental data. We also discuss several interesting selection rules arising from either the electromagnetic or the weak interaction vertices. These features suggest nontrivial relations among various hyperon decays.
Related Links	https://iopscience.iop.org/article/10.1088/1674-1137/abc067/pdf
ISSN	16741137
e-ISSN	20586132
DOI	10.1088/1674-1137/abc067
Journal	Chinese Physics C
Issue Number	1
Volume Number	45
Language	English
Publisher	IOP Publishing
Publisher Date	2020-10-13
Access Restriction	Open
Subject Keyword	Journal: Chinese Physics C Weak Radiative Decays
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Instrumentation Astronomy and Astrophysics

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