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arXiv · 1312.1601

Studies of charmed baryons at LHCb

S. Ogilvy
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Abstract

We report a search for the doubly charmed baryon $Ξ_{cc}^{+}$ through the decay $Ξ_{cc}^{+} \to Λ_{c}^{+} K^{-} π^{+}$, using a data sample corresponding to an integrated luminosity of $0.65~\mathrm{pb^{-1}}$ of $pp$ collisions at $\mathrm{\sqrt{s}} = 7~\mathrm{TeV}$. In the mass range 3300-3800$~\mathrm{MeV}/c^{2}$ 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 $R<1.5\times10^{-2}$ for a lifetime of $100~\mathrm{fs}$ and $R<3.9\times10^{-4}$ for a lifetime of $400~\mathrm{fs}$.

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S. Ogilvy. 2013-12-05. Studies of charmed baryons at LHCb. https://arxiv.org/abs/1312.1601

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