RT Journal Article T1 Measurement of the B0–B0 and B0s–B0s production asymmetries in ppcollisions at √s=7 TeV A1 LHCb Collaboration, A1 Adeva Andany, Bernardo A1 Álvarez Cartelle, Paula A1 Dosil Suárez, Álvaro A1 Fernández Albor, Víctor Manuel A1 Gallas Torreira, Abraham Antonio A1 García Pardiñas, Julián A1 Hernando Morata, José Ángel A1 Pazos Álvarez, Antonio A1 Pérez Trigo, Eliseo A1 Plo Casasus, Máximo A1 Romero Vidal, Antonio A1 Saborido Silva, Juan José A1 Sanmartín Sedes, Brais A1 Santamarina Ríos, Cibrán A1 Seco Miguélez, Marcos Antonio A1 Vázquez Regueiro, Pablo A1 Vázquez Sierra, Carlos A1 Vieites Díaz, María AB The B0–B0and B0s–B0sproduction asymmetries, AP(B0)and AP(B0s), are measured by means of a time-dependent analysis of B0→J/ψK∗0, B0→D−π+and B0s→D−sπ+decays, using a data sample corresponding to an integrated luminosity of 1.0fb−1, collected by LHCb in ppcollisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0and B0smesons within the LHCb acceptance. The production asymmetries, integrated over pTand ηin the range 4