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Title Precision measurement of the Ξ_cc^(++) mass
Posted by Jan Mickelle Maratas
Authors LHCb collaboration (R. Aaij, et al.)
Publication date 2020/2/7
Journal Journal of High Energy Physics
Volume 02
Issue 2020
Pages 049
Publisher Springer
Abstract A measurement of the Ξ++cc mass is performed using data collected by the LHCb experiment between 2016 and 2018 in pp collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.6 fb−1. The Ξ++cc candidates are reconstructed via the decay modes Ξ++cc→Λ+cK−π+π+ and Ξ++cc→Ξ+cπ+. The result, 3621.55 ± 0.23 (stat) ± 0.30 (syst) MeV/c2, is the most precise measurement of the Ξ++cc mass to date.
Index terms / Keywords Charm physics, Hadron-Hadron scattering (experiments), QCD, Spectroscopy