Precision measurement of the Bc+ meson mass
Author(s)
Williams, Michael
DownloadPublished version (676.2Kb)
Publisher with Creative Commons License
Publisher with Creative Commons License
Creative Commons Attribution
Terms of use
Metadata
Show full item recordAbstract
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/ψ π+, B+
c → J/ψ π+π−π+, B+
c → J/ψ p ̄pπ+,
B+
c → J/ψ D+
s , B+
c → J/ψ D0K+ and B+
c → B0
s π+. 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/c2.
This is the most precise measurement of the B+
c mass to date. The difference between the
B+
c and B0
s meson masses is measured to be 907.75 ± 0.37 (stat) ± 0.27 (syst) MeV/c2.
Date issued
2020Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Williams, Michael. 2020. "Precision measurement of the Bc+ meson mass." Journal of High Energy Physics, 2020 (7).
Version: Final published version