Search for C P violation in Ξ c + → Σ + h + h − and Λ c + → p h + h − at Belle II

Physical review. D/Physical review. D. 2026 Open access

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Authors: M. Abumusabh, I. Adachi, H. Ahmed, Y. Ahn, H. Aihara, N. Akopov, S. Alghamdi, M. Alhakami, N. Althubiti, K. Amos, N. Anh Ky, D. M. Asner
+88 more H. Atmacan, R. Ayad, V. Babu, N. K. Baghel, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Bartl, J. Baudot, A. Beaubien, J. Becker, J. V. Bennett, V. Bertacchi, M. Bertemes, E. Bertholet, S. Bettarini, Vishal Bhardwaj, D. Biswas, A. Bobrov, D. Bodrov, G. Bonvicini, J. Borah, A. Boschetti, M. Bračko, P. Branchini, R. A. Briere, T. E. Browder, Antonio Budano, S. Bussino, Q. Campagna, M. Campajola, G. Casarosa, C. Cecchi, P. Chang, P. Cheema, L. Chen, B. G. Cheon, Cheshta Cheshta, H. Chetri, Kirill Chilikin, J. Chin, K. Chirapatpimol, H.-E. Cho, K. Cho, S.-J. Cho, S.-K. Choi, S. Choudhury, S. Chutia, J. A. Colorado-Caicedo, I. Consigny, Luigi Corona, J. X. Cui, S. Das, S. A. De La Motte, G. De Nardo, G. De Pietro, R. de Sangro, M. Destefanis, A. Di Canto, Z. Doležal, I. Domínguez Jiménez, T. V. Dong, X. Dong, M. Dorigo, G. Dujany, P. Ecker, D. Epifanov, J. Eppelt, R. Farkas, P. Feichtinger, T. Ferber, T. Fillinger, G. Finocchiaro, F. Forti, B. G. Fulsom, A. Gabrielli, E. Ganiev, R. Garg, G. Gaudino, V. Gaur, V. Gautam, A. Gaz, Andreas Gellrich, D. Ghosh, H. Ghumaryan, R. Giordano, A. Giri, P. Gironella Gironell
DOI: 10.1103/s2gy-c3vh
Cited by: 1
References: 46

Abstract

We report decay-rate C P asymmetries of the singly-Cabibbo-suppressed decays Ξ c + → Σ + h + h − and Λ c + → p h + h − , with h = K , π , measured using 428 fb − 1 of e + e − collisions collected by the Belle II experiment at the SuperKEKB collider. The results, A C P ( Ξ c + → Σ + K + K − ) = ( 3.7 ± 6.6 ± 0.6 ) % , A C P ( Ξ c + → Σ + π + π − ) = ( 9.5 ±

Fields of Study & Subjects

Particle physics theoretical and experimental studies Quantum Chromodynamics and Particle Interactions Neutrino Physics Research

Publication details

Journal / source
Physical review. D/Physical review. D.
Publisher
American Physical Society (APS)
Volume
113
Issue
3
Publication date
22 January 2026
Language
EN