Measurement of branching fractions and CP asymmetries in Λb0b0) → pKS0h- decays



Aaij, R, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinen, F, Ackernley, T, Adefisoye, AA, Adeva, B, Adinolfi, M, Adlarson, P, Agapopoulou, C
et al (show 1173 more authors) (2025) Measurement of branching fractions and CP asymmetries in Λb0b0) → pKS0h- decays JOURNAL OF HIGH ENERGY PHYSICS, 2025 (10). 169-. ISSN 1126-6708, 1029-8479

Access the full-text of this item by clicking on the Open Access link.

Abstract

A study of Λb0 and Ξb0 baryon decays to the final states pKS0π− and pKS0K− is performed using pp collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The decays Λb0→pKS0K− and Ξb0→pKS0K− are observed for the first time, with significances reaching eight standard deviations. The branching fractions and integrated CP asymmetries are measured for the Λb0→pKS0π−, Λb0→pKS0K−, and Ξb0→pKS0K− decays. For the decay Λb0→pKS0π−, the CP asymmetries are measured in different regions of the Dalitz plot. No evidence of CP violation is observed.

Item Type: Article
Uncontrolled Keywords: B Physics, Branching fraction, CP Violation, Hadron-Hadron Scattering
Divisions: Faculty of Humanities & Social Sciences
Faculty of Science & Engineering
Faculty of Science & Engineering > School of Engineering
Faculty of Science & Engineering > School of Physical Sciences
Faculty of Science & Engineering > School of Physical Sciences > Physics
Faculty of Humanities & Social Sciences > School of the Arts
Faculty of Humanities & Social Sciences > School of the Arts > Architecture
Faculty of Science & Engineering > School of Engineering > Civil and Environmental Engineering
Depositing User: Symplectic Admin
Date Deposited: 09 Dec 2025 09:08
Last Modified: 16 Jun 2026 20:25
DOI: 10.1007/JHEP10(2025)169
Open Access URL: https://link.springer.com/content/pdf/10.1007/JHEP...
Related Websites:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3195994
Disclaimer: The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate.