Measurement of the B0–B0 oscillation frequency md with the decays B0→D−π+ and B0→J/ψK∗0

Abstract

The B0–B0oscillation frequency mdis measured by the LHCb experiment using a dataset correspondingto an integrated luminosity of 1.0fb−1of proton–proton collisions at√s=7TeV,and is found to be md=0.5156±0.0051(stat.)±0.0033(syst.)ps−1. The measurement is based on results from analyses of the decays B0→D−π+(D−→K+π−π−) and B0→J/ψK∗0(J/ψ→μ+μ−,K∗0→K+π−) and their charge conjugated modes.