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

Aubert, B; Boutigny, D; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Robbe, P; ... BABAR Collaboration, .; + view all (2002) Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events. PHYS REV LETT , 88 (23) , Article 231801. 10.1103/PhysRevLett.88.231801. Green open access

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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) .

Type: Article
Title: Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.88.231801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.88.231801
Language: English
Keywords: DECAYS, PARAMETERS
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1303608
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