We report the results of a search for T and CP violation in B-0-(B) over bar (0) mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B Factory. The asymmetry between .(+).(+) and .(-).(-) events allows us to compare the probabilities for (B) over bar (0)-->B (0) and B-0-->(B) over bar (0) oscillations and thus probe T and CP invariance. Using a sample of 23x10(6) B (B) over bar 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 parallel toq/pparallel to=0.998+/-0.006(stat) +/-0.007(syst) .

Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2002). Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events. PHYSICAL REVIEW LETTERS, 88(23) [10.1103/PhysRevLett.88.231801].

Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events

CARPINELLI, Massimo;
2002

Abstract

We report the results of a search for T and CP violation in B-0-(B) over bar (0) mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B Factory. The asymmetry between .(+).(+) and .(-).(-) events allows us to compare the probabilities for (B) over bar (0)-->B (0) and B-0-->(B) over bar (0) oscillations and thus probe T and CP invariance. Using a sample of 23x10(6) B (B) over bar 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 parallel toq/pparallel to=0.998+/-0.006(stat) +/-0.007(syst) .
Articolo in rivista - Articolo scientifico
BABAR experiment
English
2002
88
23
231801
none
Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2002). Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events. PHYSICAL REVIEW LETTERS, 88(23) [10.1103/PhysRevLett.88.231801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390032
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