Studies of charmed baryons at LHCb

2013/12/05 by Ogilvy, S.
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)

paper · doi:10.48550/arxiv.1312.1601

Abstract

We report a search for the doubly charmed baryon Ξ_cc⁺ through the decay Ξ_cc⁺ → Λ_c⁺ K^- π⁺, using a data sample corresponding to an integrated luminosity of 0.65~\mathrmpb^-1 of pp collisions at √(s) = 7~TeV. In the mass range 3300-3800~MeV/c² no significant signal is observed. Upper limits at 95% confidence level are set on R, the ratio of the production cross section of the Ξ_cc⁺ times the relevant branching fraction over the Λ_c⁺ cross section, as a function of the Ξ_cc⁺ mass and lifetime. The largest upper limits on R over the investigated mass range are R<1.5×10^-2 for a lifetime of 100~fs and R<3.9×10^-4 for a lifetime of 400~fs.

Related

• Observation of the doubly-charmed-baryon decay \it Ξ_cc⁺⁺→\it Ξ_c⁰π⁺π⁺
• Observation of a new charmed baryon decaying to Ξ_c⁺ π^- π⁺
• Observation of the Doubly Charmed Baryon Ξ c c + with the LHCb Run 3 Detector
• Potential of discovering Ξ_cc⁺ in Λ_b decays
• Charmed baryons from LHCb