Search for T, CP and CPT Violation in B(sup o)-B(sup bar o) Mixing with Inclusive Dilepton Events

摘要

The authors report the results of a search for T, CP and CPT violation in B)sup 0)-)bar B))sup 0) mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B Factory. Using a sample of 232 million B)bar B) pairs, with a simultaneous likelihood fit of the same-sign and opposite-sign dileptons, they measure the T and Cp violation parameter q/p-1 = (-0.8 )+-) 2.7(stat.) )+-) 1.9(syst.)) x 10)sup -3), and the CPT and CP parameters Im z = (-13.9 )+-) 7.3(stat.) )+-) 3.2(syst.)) x 10)sup -3) and )Delta))Lambda) x Re z = (-7.1 )+-) 3.9(stat.) )+-) 2.0(syst.)) x 10)sup -3) ps)sup -1). The statistical correlation between the measurements of Im z and )Delta))Lambda) x Re z is 76%.