Physical Review Letters
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Observation of a New Charmed Baryon Decaying to ${\mathrm{Ξ}}_{c}^{+}{π}^{−}{π}^{+}$
Author(s): R. Aaij et al. (LHCb Collaboration)
The ${\mathrm{Ξ}}_{c}^{+}{π}^{−}{π}^{+}$ spectrum is investigated using proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $5.4\text{ }\text{ }{\mathrm{fb}}^{−1}$, collected by the LHCb experiment during 2016–2018. Four states are observed wit… [Phys. Rev. Lett. 135, 161901] Published Tue Oct 14, 2025
