Study of b-hadron decays to Λ+c h−h′− final states
Decays of Ξ −b and Ω−b baryons to Λ+c h−h′− final states, with h−h′− being π−π−, K−π− and K−K− meson pairs, are searched for using data collected with the LHCb detector. The data sample studied corresponds to an integrated luminosity of 8.7 fb−1 of pp collisions collected at centre-of-mass energies...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
August 19,2024
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| In: |
Journal of high energy physics
Year: 2024, Issue: 8, Pages: 1-31 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2024)132 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP08(2024)132 Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1007/JHEP08(2024)132 |
| Author Notes: | The LHCb collaboration |
MARC
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| 245 | 1 | 0 | |a Study of b-hadron decays to Λ+c h−h′− final states |c The LHCb collaboration |
| 246 | 3 | 3 | |a Study of b-hadron decays to lambda plus c h minus h′ minus final states |
| 264 | 1 | |c August 19,2024 | |
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| 500 | |a The LHCb collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C.E. Cocha Toapaxi, M. De Cian, L. Dittmann, S. Esen, F. Glaser, P.A. Günther, X. Han, S. Hausmann-Menzemer, P. Herrero Gascon, J. Hu, J. Kubat, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, P.R. Pais, S.R. Roy, M. Ruiz Diaz, M. Schmelling, G. Tuci, L.H. Uecker, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, M. Zavertyaev, Y. Zhao, A. Zhelezov und weitere 1063 | ||
| 500 | |a Gesehen am 09.10.2025 | ||
| 520 | |a Decays of Ξ −b and Ω−b baryons to Λ+c h−h′− final states, with h−h′− being π−π−, K−π− and K−K− meson pairs, are searched for using data collected with the LHCb detector. The data sample studied corresponds to an integrated luminosity of 8.7 fb−1 of pp collisions collected at centre-of-mass energies √s = 7, 8 and 13 TeV. The products of the relative branching fractions and fragmentation fractions for each signal mode, relative to the B− → Λ+c pπ− mode, are measured, with Ξ −b → Λ+c K−π−, Ξ −b → Λ+c K−K− and Ω−b → Λ+c K−K− decays being observed at over 5 σ significance. The Ξ −b → Λ+c K−π− mode is also used to measure the Ξ −b production asymmetry, which is found to be consistent with zero. In addition, the B− → Λ+c pK− decay is observed for the first time, and its branching fraction is measured relative to that of the B− → Λ+c pπ− mode. | ||
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