Measurement of branching fractions of charmless four-body Λb 0 and Ξb 0 decays
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Authors
Colleges, School and Institutes
External organisations
- European Organization for Nuclear Research (CERN)
- Universidad de Santiago de Compostela
- BRISTOL UNIVERSITY
- LPC
- University of Cincinnati
- Technische Universität Dortmund
- University of Glasgow
- Universitat Autònoma de Barcelona
- Nikhef National Institute for Subatomic Physics
- Petersburg Nuclear Physics Institute (PNPI)
- Imperial College London
- Universidade Federal Do Rio de Janeiro (UFRJ)
- Department of Physics and Astronomy and INFN
- IN2P3
- Tsinghua University
- Department of Biology and Evolution; University of Ferrara; Ferrara; Italy
- University of Maryland, College Park, Maryland 20742 USA
- University of Manchester
- Ruprecht-Karls-Universität Heidelberg
- CNRS/IN2P3
- Institute for High Energy Physics (IHEP)
- Syracuse University, Syracuse, New York 13244, USA
- Universität Zürich
- THE UNIVERSITY OF WARWICK
- Universitat Ramon Llull
- Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio)
- Laboratoire Leprince-Ringuet
Abstract
A search for charmless four-body decays of Λb 0 and Ξb 0 baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The data sample used was recorded in 2011 and 2012 with the LHCb experiment and corresponds to an integrated luminosity of 3 fb−1. Six decay modes are observed, among which Λb 0 → pK−π+π−,Λb 0 → pK−K+K−,Ξb 0 → pK−π+π− and Ξb 0 → pK−π+K− are established for the first time. Their branching fractions (including the ratio of hadronisation fractions in the case of the Ξb 0 baryon) are determined relative to the Λb 0 → Λc +π− decay.[Figure not available: see fulltext.].
Details
Original language | English |
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Article number | 98 |
Journal | Journal of High Energy Physics |
Volume | 2018 |
Issue number | 2 |
Publication status | Published - 16 Feb 2018 |
Keywords
- B physics, Branching fraction, Hadron-Hadron scattering (experiments)