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Displaced B c mesons as an inclusive signature of weakly decaying double beauty hadrons

  • T. GershonEmail author
  • A. Poluektov
Open Access
Regular Article - Experimental Physics
  • 11 Downloads

Abstract

The recent discovery, by the LHCb collaboration, of the Ξ cc + + doubly charmed baryon, has renewed interest in the spectroscopy of doubly heavy hadrons. Experimentally, however, searches for such states appear highly challenging. The reconstructed final states tend to involve multiple heavy flavoured (beauty or charm) hadrons, so the yield for any exclusive decay mode will be suppressed to unobservably low levels by the product of several branching fractions, each of which is typically 10−3–10−2. Noting that decays of double beauty hadrons are the only possible source of B c mesons that are displaced from the primary vertices of proton-proton collisions at the LHC, a more promising inclusive search strategy is proposed.

Keywords

Spectroscopy B physics Hadron-Hadron scattering (experiments) 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2019

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of WarwickCoventryUnited Kingdom
  2. 2.Aix Marseille Université, CNRS/IN2P3, CPPMMarseilleFrance

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