Measurement of the B¯0–B0 and B¯s0–Bs0 production asymmetries in pp collisions at s=7 TeV

The B¯0–B0 and B¯s0–Bs0 production asymmetries, AP(B0)AP(B0) and AP(Bs0), are measured by means of a time-dependent analysis of B0→J/ψK⁎0B0→J/ψK⁎0, B0→D−π+B0→D−π+ and Bs0→Ds−π+ decays, using a data sample corresponding to an integrated luminosity of 1.0 fb−11.0 fb−1, collected by LHCb in pp   collisions at a centre-of-mass energy of 7 TeV7 TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0B0 and Bs0 mesons within the LHCb acceptance. The production asymmetries, integrated over pTpT and η   in the range 4