Abstract
Using events in which one of two neutral B mesons from the decay of an Υ(4S) resonance is fully reconstructed, we set limits on the difference between the decay rates of the two neutral B mass eigenstates and on CP, T, and CPT violation in B0B0 mixing. The reconstructed decays, comprising both CP and flavor eigenstates, are obtained from 88 million Υ(4S)→BB¯ decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We determine six independent parameters governing oscillations (Δm,ΔΓ/Γ), CPT and CP violation (Rez,Imz), and CP and T violation (ImλCP,|q/p|), where λCP characterizes B0 and B0 decays to states of charmonium plus KS0 or KL0. The results are sgn(ReλCP)ΔΓ/Γ=−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],(ReλCP/|λCP|)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. The values of ImλCP and Δm are consistent with previous analyses and are used as cross checks. These measurements are in agreement with standard model expectations.Received 29 February 2004DOI:https://doi.org/10.1103/PhysRevD.70.012007©2004 American Physical Society
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
