Studies of charmed baryons at LHCb

Abstract

We report a search for the doubly charmed baryon ${\Xi }_{cc}^{+}$ through the decay ${\Xi }_{cc}^{+}\to {\Lambda }_c^{+}{K}^{-}{\pi }^{+}$, using a data sample corresponding to an integrated luminosity of $0.65\mathrm{p}{\mathrm{b}}^{-1}$ of $pp$ collisions at $\sqrt{\mathrm{s}}=7\mathrm{TeV}$. 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 ${\Xi }_{cc}^{+}$ times the relevant branching fraction over the ${\Lambda }_c^{+}$ cross section, as a function of the ${\Xi }_{cc}^{+}$ mass and lifetime. The largest upper limits on $R$ over the investigated mass range are $R<1.5\times 10^{-2}$ for a lifetime of $100\mathrm{fs}$ and $R<3.9\times 10^{-4}$ for a lifetime of $400\mathrm{fs}$.

Article to appear in the proceedings of The 6th International Workshop on Charm Physics (CHARM 2013)

References in corpus (3)

• Prompt charm production in pp collisions at sqrt(s)=7 TeV
• Search for the doubly charmed baryon Xi_cc^+
• Lifetime of doubly charmed baryons

Cited by in corpus (1)

• The melting and abundance of open charm hadrons