par Abreu, Pedro;Bertrand, Daniel ;Bricman, Claude ;Vander Velde, Catherine ;Wickens, John H. ; [et al.]
Référence Physics letters. Section B, 338, 2-3, page (409-420)
Publication Publié, 1994
Article révisé par les pairs
Résumé : The time dependent mixing of Bd 0-B̄d 0 mesons has been observed by using the correlations between the charge of D* mesons and the weighted mean charge of particles in each hemisphere. From a reconstructed D*± sample corresponding to about 1.7 million hadronic Z0 decays, the mass difference between the two Bd 0 mass eigenstates has been measured to be Δm = 0.50±0.12 (stat.) ± 0.06 (syst.) (Latin small letter h with stroke sign)/ps or, converting into eV/c2: Δm = [3.29±0.79 (stat.) ± 0.39 (syst.)] 10-4 eV/c2.