Search for the doubly charmed baryon ${\Omega }_{cc}^{+}$

Abstract

A search for the doubly charmed baryon ${\Omega }_{cc}^{+}$ with the decay mode ${\Omega }_{cc}^{+}\to {\Xi }_c^{+}{K}^{-}{\pi }^{+}$ is performed using proton-proton collision data at a centre-of-mass energy of 13$\mathrm{Te}\mathrm{V}$ collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of $5.4{\mathrm{fb}}^{-1}$. No significant signal is observed within the invariant mass range of 3.6 to 4.0$\mathrm{Ge}\mathrm{V}/c^2$. Upper limits are set on the ratio $R$ of the production cross-section times the total branching fraction of the ${\Omega }_{cc}^{+}\to {\Xi }_c^{+}{K}^{-}{\pi }^{+}$ decay with respect to the ${\Xi }_{cc}^{++}\to {\Lambda }_c^{+}{K}^{-}{\pi }^{+}{\pi }^{+}$ decay. Upper limits at 95% credibility level for $R$ in the range $0.005$ to $0.11$ are obtained for different hypotheses on the ${\Omega }_{cc}^{+}$ mass and lifetime in the rapidity range from 2.0 to 4.5 and transverse momentum range from 4 to 15$\mathrm{Ge}\mathrm{V}/c$.

arXiv commentAll figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-011.html (LHCb public pages)

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Cited by in corpus (8)

• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Search for the doubly heavy baryon ${\Xi }_{bc}^{+}$ decaying to $J/\psi {\Xi }_c^{+}$
• Strong decays of the low-lying doubly bottom baryons
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