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) .

Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events / B., A., D., B., J. M., G., A., H., Y., K., J. P., L., P., R., V., T., A., Z., A., P., A., P., G. P., C., J. C., C., N. D., Q.i., G., R., P., W., Y. S., Z., G., E., B., S., G. S., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 88:(2002), p. 231801. [10.1103/physrevlett.88.231801]

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

RAHATLOU, SHAHRAM;CAVOTO, Gianluca;DEL RE, Daniele;FACCINI, Riccardo;FERRONI, Fernando;C. Voena;
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) .
2002
01 Pubblicazione su rivista::01a Articolo in rivista
Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events / B., A., D., B., J. M., G., A., H., Y., K., J. P., L., P., R., V., T., A., Z., A., P., A., P., G. P., C., J. C., C., N. D., Q.i., G., R., P., W., Y. S., Z., G., E., B., S., G. S., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 88:(2002), p. 231801. [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/11573/458140
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