# Precision measurement of the Ξcc++mass

Peter Clarke, Robert Currie, Stephan Eisenhardt, Silvia Gambetta, Franz Muheim, Matthew Needham, Marco Pappagallo, Mark Williams, LHCb Collaboration

Research output: Contribution to journalArticlepeer-review

## Abstract

A measurement of the ${\varXi}_{cc}^{++}$ 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 ${\varXi}_{cc}^{++}$ candidates are reconstructed via the decay modes ${\varXi}_{cc}^{++}\to {\varLambda}_c^{+}{K}^{-}{\pi}^{+}{\pi}^{+}$ and ${\varXi}_{cc}^{++}\to {\varXi}_c^{+}{\pi}^{+}$. The result, 3621.55 ± 0.23 (stat) ± 0.30 (syst) MeV/c$^{2}$, is the most precise measurement of the ${\varXi}_{cc}^{++}$ mass to date.[graphic not available: see fulltext]
Original language English 49 Journal of High Energy Physics 2020 https://doi.org/10.1007/JHEP02(2020)049 Published - 7 Feb 2020

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