Measurement of the Ωc0 and Ξc0 baryon lifetimes using hadronic b-baryon 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 1155 more authors) (2025) Measurement of the Ωc0 and Ξc0 baryon lifetimes using hadronic b-baryon decays JOURNAL OF HIGH ENERGY PHYSICS, 2025 (9). 157-. ISSN 1126-6708, 1029-8479

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Abstract

The lifetimes of the Ωc0 and Ξc0 baryons are measured using a pp collision dataset collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The charm baryons are produced in the fully reconstructed decay chains Ωb−→Ωc0→pK−K−π+π− and Ξb−→Ξc0→pK−K−π+π−. The measurement uses topologically and kinematically similar B → D0(→ KK+ππ+ decays for normalisation. The measured lifetimes are (Formula presented.) where the first uncertainty is statistical, the second systematic and the third due to the uncertainty of the D0 lifetime. These results are consistent with previous measurements performed by the LHCb experiment.

Item Type: Article
Uncontrolled Keywords: Charm Physics, Flavour Physics, Hadron-Hadron Scattering, Lifetime
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: 08 Dec 2025 16:07
Last Modified: 23 May 2026 10:35
DOI: 10.1007/JHEP09(2025)157
Open Access URL: https://link.springer.com/content/pdf/10.1007/JHEP...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3195997
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