Search for T, CP and CPT Violation in B0-B0bar Mixing with Inclusive Dilepton Events

Details Search for T, CP and CPT Violation in B0-B0bar Mixing with Inclusive Dilepton Events Search for T, CP and CPT Violation in B0-B0bar Mixing with Inclusive Dilepton Events

2006-03-28

arxiv.org/abs/hep-ex/0603053v1

Phys.Rev.Lett.96:251802,2006

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 1 postscript figure, submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.96.251802

We report the results of a search for T, CP and CPT violation in B0-B0bar mixing using an inclusive dilepton sample collected by the BaBar experiment at the PEP-II B Factory. Using a sample of 232 million BBbar pairs, with a simultaneous likelihood fit of the same-sign and opposite-sign dileptons, we measure the T and CP violation parameter |q/p|-1 = (-0.8 +/- 2.7(stat.) +/- 1.9(syst.))e-03, and the CPT and CP parameters Im(z) = (-13.9 +/- 7.3 (stat.) +/- 3.2(syst.))e-03 and DeltaGamma x Re(z) = (-7.1 +/- 3.9(stat.) +/- 2.0(syst.))e-03 ps^{-1}. The statistical correlation between the measurements of Im(z) and DeltaGamma x Re(z) is 76%.

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