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. 2002 Jun 10;88(23):231801.
doi: 10.1103/PhysRevLett.88.231801. Epub 2002 May 20.

Search for T and CP violation in B0-B-0 mixing with inclusive dilepton events

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Free article

Search for T and CP violation in B0-B-0 mixing with inclusive dilepton events

B Aubert et al. Phys Rev Lett. .
Free article

Abstract

We report the results of a search for T and CP violation in B0-B-0 mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B Factory. The asymmetry between l+l+ and l-l- events allows us to compare the probabilities for B-0-->B0 and B0-->B-0 oscillations and thus probe T and CP invariance. Using a sample of 23 x 10(6) BB- pairs, we measure a same-sign dilepton asymmetry of A(T/CP) = [0.5+/-1.2(stat)+/-1.4(syst)]%. For the modulus of the ratio of complex mixing parameters p and q, we obtain q/p = 0.998+/-0.006(stat)+/-0.007(syst).

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