\(K_S^0-K_L^0\) 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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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
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author Fanrong Xu
Qiaoyi Wen
Huiling Zhong
author_facet Fanrong Xu
Qiaoyi Wen
Huiling Zhong
author_sort Fanrong Xu
collection DOAJ
description 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.
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spelling doaj.art-b49d0201ca7e47d7b353f944dbcb1bc12022-12-21T17:50:07ZengAndromeda Publishing and Academic ServicesLetters in High Energy Physics2632-27142021-11-012021110.31526/lhep.2021.218\(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed BaryonsFanrong Xu0Qiaoyi Wen1Huiling Zhong2Department of Physics, Jinan University, Guangzhou 510632, People’s Republic of ChinaDepartment of Physics, Jinan University, Guangzhou 510632, People’s Republic of ChinaDepartment of Physics, Jinan University, Guangzhou 510632, People’s Republic of ChinaThe \(K_S-K_L\) (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.http://journals.andromedapublisher.com/index.php/LHEP/article/view/218charmed baryonweak decay\(K_S^0-K_L^0\) asymmetries
spellingShingle Fanrong Xu
Qiaoyi Wen
Huiling Zhong
\(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed Baryons
Letters in High Energy Physics
charmed baryon
weak decay
\(K_S^0-K_L^0\) asymmetries
title \(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed Baryons
title_full \(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed Baryons
title_fullStr \(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed Baryons
title_full_unstemmed \(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed Baryons
title_short \(K_S^0-K_L^0\) Asymmetries in Weak Decays of Charmed Baryons
title_sort k s 0 k l 0 asymmetries in weak decays of charmed baryons
topic charmed baryon
weak decay
\(K_S^0-K_L^0\) asymmetries
url http://journals.andromedapublisher.com/index.php/LHEP/article/view/218
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AT qiaoyiwen ks0kl0asymmetriesinweakdecaysofcharmedbaryons
AT huilingzhong ks0kl0asymmetriesinweakdecaysofcharmedbaryons