Cover Image

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...

Full description

Saved in:
Bibliographic Details
Main Authors: Aaij, Roel (Author) , Bachmann, Sebastian (Author) , Carus, Leon (Author) , Caspary, Rowina (Author) , Celani, Sara (Author) , Cocha Toapaxi, Carlos (Author) , De Cian, Michel (Author) , Dittmann, Lucas (Author) , Esen, Sevda (Author) , Glaser, Fabian (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Herrero Gascón, Paula (Author) , Hu, Jiangqiao (Author) , Kubat, Jakub (Author) , Langenbruch, Christoph (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Morgenthaler, Maurice Pierre (Author) , Pais, Preema (Author) , Roy, Shreya (Author) , Ruiz Diaz, Miguel (Author) , Schmelling, Michael (Author) , Tuci, Giulia (Author) , Uecker, Lennart Henning (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Wang, Chishuai (Author) , Witola, Lukas (Author) , Zavertyaev, Mikhail (Author) , Zhao, Ya (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: August 19,2024
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
Get full text
Author Notes:The LHCb collaboration
Description
Summary: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.
Item Description:Im Titel sind die Zeichen "+" und "-" hochgestellt
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
Gesehen am 09.10.2025
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP08(2024)132

Similar Items