Title |
Precision measurement of the ÃÂÃÂ_cc^(++) mass |
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 ÃÂÃÂ++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 fbâÃÂÃÂ1. The ÃÂÃÂ++cc candidates are reconstructed via the decay modes ÃÂÃÂ++ccâÃÂÃÂÃÂÃÂ+cKâÃÂÃÂÃÂÃÂ+ÃÂÃÂ+ and ÃÂÃÂ++ccâÃÂÃÂÃÂÃÂ+cÃÂÃÂ+. The result, 3621.55 ÃÂñ 0.23 (stat) ÃÂñ 0.30 (syst) MeV/c2, is the most precise measurement of the ÃÂÃÂ++cc mass to date. |
Index terms / Keywords |
Charm physics, Hadron-Hadron scattering (experiments), QCD, Spectroscopy |
DOI |
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URL |
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