TY - JOUR
T1 - Measurement of b-hadron masses
AU - The LHCb Collaboration
AU - Aaij, R.
AU - Playfer, Stephen
AU - Needham, Matthew
AU - Muheim, Franz
AU - Clarke, Peter
AU - Xie, Yuehong
AU - Eisenhardt, Stephan
N1 - Long author list - awaiting processing
PY - 2012/2/10
Y1 - 2012/2/10
N2 - Measurements of b−hadron masses are performed with the exclusive decay modes B+→J/ψK+, B0→J/ψ K∗0, B0→J/ψK0S, B0s→J/ψϕ and Λb→J/ψΛ using an integrated luminosity of 35 pb−1 collected in pp collisions at a centre-of-mass energy of 7 TeV by the LHCb experiment. The momentum scale is calibrated with J/ψ→μ+μ− decays and verified to be known to a relative precision of 2×10−4 using other two-body decays. The results are more precise than previous measurements, particularly in the case of the B0s and Λ0b masses.
AB - Measurements of b−hadron masses are performed with the exclusive decay modes B+→J/ψK+, B0→J/ψ K∗0, B0→J/ψK0S, B0s→J/ψϕ and Λb→J/ψΛ using an integrated luminosity of 35 pb−1 collected in pp collisions at a centre-of-mass energy of 7 TeV by the LHCb experiment. The momentum scale is calibrated with J/ψ→μ+μ− decays and verified to be known to a relative precision of 2×10−4 using other two-body decays. The results are more precise than previous measurements, particularly in the case of the B0s and Λ0b masses.
UR - http://www.scopus.com/inward/record.url?scp=84863116072&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2012.01.058
DO - 10.1016/j.physletb.2012.01.058
M3 - Article
SN - 1873-2445
VL - 708
SP - 241
EP - 248
JO - Physics Letters B
JF - Physics Letters B
IS - 3-5
ER -