TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2020
DA  - 2020//
TI  - Precision measurement of the B-c(+) meson mass
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 123
EP  - 21pp
VL  - 07
IS  - 7
PB  - Springer
KW  - B physics
KW  - Hadron-Hadron scattering (experiments)
KW  - QCD
KW  - Spectroscopy
AB  - A precision measurement of the B-c(+) meson mass is performed using proton- proton collision data collected with the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to a total integrated luminosity of 9.0 fb(-1). The B-c(+) mesons are reconstructed via the decays B-c(+)-> J/psi pi(+), B-c(+)-> J/psi pi(+)pi(-)pi(+), B-c(+)-> J/psi pp<overbar>pi(+), B-c(+)-> J/psi D-s(+), B-c(+)-> J/psi (DK+)-K-0 and B-c(+)-> B-s(0)pi(+). Combining the results of the individual decay channels, the B-c(+) mass is measured to be 6274.47 +/- 0.27 (stat) +/- 0.17 (syst) MeV/c(2). This is the most precise measurement of the B-c(+) mass to date. The difference between the B-c(+) and B-s(0) meson masses is measured to be 907.75 +/- 0.37 (stat) +/- 0.27 (syst) MeV/c(2).
SN  - 1029-8479
UR  - https://arxiv.org/abs/2004.08163
UR  - https://doi.org/10.1007/JHEP07(2020)123
DO  - 10.1007/JHEP07(2020)123
LA  - English
N1  - WOS:000553446200002
ID  - LHCbCollaborationAaij_etal2020
ER  -