\(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed Baryons

The \(K_S-K_L\) (SL) asymmetry occurs in the two-body charmed baryon decay with neutral kaon contained in their final states.In this work, based on the topological diagram approach and separated contributions calculated in naive factorization and the pole model, we provide explicit predictions on SL...

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Bibliographic Details
Main Authors: Fanrong Xu, Qiaoyi Wen, Huiling Zhong
Format: Article
Language:English
Published: Andromeda Publishing and Academic Services 2021-11-01
Series:Letters in High Energy Physics
Subjects:
Online Access:http://journals.andromedapublisher.com/index.php/LHEP/article/view/218
Description
Summary:The \(K_S-K_L\) (SL) asymmetry occurs in the two-body charmed baryon decay with neutral kaon contained in their final states.In this work, based on the topological diagram approach and separated contributions calculated in naive factorization and the pole model, we provide explicit predictions on SL asymmetries for all the singly charmed baryon two-body decays.  Especially, for the first time, we predict a sizable SL asymmetry for \(\Omega_c\) decays in its unique decay channel  \(\Omega_c\to \Xi^0 K_{S,L}\).  Among the four groups of decays in antitriplet charmed baryons,  the \(R\) values for \(\Xi_c^+\to \Sigma^+ K_{S,L}\) and \(\Xi_c^0\to \Sigma^0 K_{S,L}\) are around \(-0.5\), which are promising to be measured. However, the other two groups \(\Lambda_c^+\to p K_{S,L}\) and \(\Xi_c^0\to \Lambda^0 K_{S,L}\) are relatively small. Our predictions are partially consistent with theoretical results provided by two other groups and an examination by future experiments is highly anticipated.
ISSN:2632-2714