Search for the X(4140) state in B +¿J/¿¿K + decays - Aaij, R.; Beteta, C. Abellan; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Alkhazov, G.; Cartelle, P. Alvarez; et al. (Physical Review D - Particles, Fields, Gravitation And Cosmology, 2012)