Limits on the Lifetime Difference of Neutral B Mesons and on CP, T, and CPT Violation in B0-B0bar Mixing

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dc.creatorBABAR Collaboration
dc.creatorAubert, B.
dc.date2003-03-27
dc.date.accessioned2026-07-07T03:35:43Z
dc.date.available2026-07-07T03:35:43Z
dc.descriptionUsing events in which one of two neutral B mesons from the decay of an Y(4S) resonance is fully reconstructed, we set limits on the lifetime difference between the two neutral-B mass eigenstates and on CP, T, and CPT violation in B0-B0bar mixing. Both CP and non-CP eigenstates were obtained from the 88 million Y(4S)->B0B0bar decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy B-Factory at SLAC. We determine six independent parameters governing mixing (dm, dGamma/Gamma), CPT/CP violation (Re(z), Im(z)), and CP/T violation (Imλ(CP), |q/p|), where λ(CP) characterizes B0 and B0bar decays to states of charmonium plus K_S or K_L. The preliminary results are: sgn(Reλ(CP))*dGamma/Gamma = -0.008+-0.037(stat)+-0.018(syst) [-0.084,0.068], |q/p| = 1.029+-0.013(stat)+-0.011(syst) [1.001,1.057], (Reλ(CP)/|λ(CP)|)*Rez = 0.014+-0.035(stat)+-0.034(syst) [-0.072,0.101], Imz = 0.038+-0.029(stat)+-0.025(syst) [-0.028,0.104] . The values inside square brackets indicate the 90% confidence-level intervals. For Imλ(CP)/|λ(CP)| and dm we find values consistent with recent results from other analyses. These results are consistent with Standard Model expectations.
dc.descriptionPresented at the XXXVIIIth Rencontres de Moriond on Electroweak Interactions and Unified Theories, 15-22 March 2003, Les Arcs, France
dc.identifierhttps://arxiv.org/abs/hep-ex/0303043
dc.identifierhttp://arxiv.org/abs/hep-ex/0303043
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/37460
dc.subjectHigh Energy Physics - Experiment
dc.titleLimits on the Lifetime Difference of Neutral B Mesons and on CP, T, and CPT Violation in B0-B0bar Mixing
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