Study of CP violations in [Formula omitted] and [Formula omitted] decays in the QCD factorization approach

Within the QCD factorization approach, we study the CP violations in [Formula omitted] and [Formula omitted] decays. We find the experimental data of the localized CP asymmetry in [Formula omitted] decays in the region [Formula omitted] [Formula omitted] and [Formula omitted] [Formula omitted] can b...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2018-10, Vol.78 (10), p.1-8
Main Authors: Qi, Jing-Juan, Guo, Xin-Heng, Wang, Zhen-Yang, Zhang, Zhen-Hua, Xu, Jing
Format: Article
Language:English
Subjects:
Asymmetry
Decay
Divergence
Factorization
Interference
Parameters
Online Access:Get full text
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Summary:Within the QCD factorization approach, we study the CP violations in [Formula omitted] and [Formula omitted] decays. We find the experimental data of the localized CP asymmetry in [Formula omitted] decays in the region [Formula omitted] [Formula omitted] and [Formula omitted] [Formula omitted] can be explained by the interference of two intermediate resonances, [Formula omitted] and [Formula omitted] when the parameters in our interference model are in the allowed ranges, i.e. the relative strong phase [Formula omitted] and the end-point divergence parameters [Formula omitted] and [Formula omitted]. With the obtained allowed ranges for [Formula omitted] and [Formula omitted], we obtain the predictions for the CP asymmetry parameter [Formula omitted] and the branching fraction [Formula omitted] for [Formula omitted] decay modes.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-018-6307-x