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- Title
First observation and branching fraction measurement of the Λb0→Ds−p decay.
- Authors
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; Ajaltouni, Z.; Akar, S.; Akiba, K.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Aliouche, Z.
- Abstract
The first observation of the Λ b 0 → D s − p decay is presented using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of s = 13 TeV, corresponding to a total integrated luminosity of 6 fb−1. Using the Λ b 0 → Λ c + π − decay as the normalisation mode, the branching fraction of the Λ b 0 → D s − p decay is measured to be B Λ b 0 → D s − p = 12.6 ± 0.5 ± 0.3 ± 1.2 × 10 − 6 , where the first uncertainty is statistical, the second systematic and the third due to uncertainties in the branching fractions of the Λ b 0 → Λ c + π − , D s − → K − K + π − and Λ c + → p K − π + decays.
- Subjects
PROTON-proton interactions; HADRON-hadron scattering; FRACTIONS; LUMINOSITY; ACQUISITION of data
- Publication
Journal of High Energy Physics, 2023, Vol 2023, Issue 7, p1
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP07(2023)075