Details

Autor(en) / Beteiligte

• Lees, J P

Titel

Study of CP Asymmetry in B0-B-0 Mixing with Inclusive Dilepton Events

Ist Teil von

• Physical review letters, 2015-02, Vol.114 (8)

Ort / Verlag

United States: American Physical Society (APS)

Erscheinungsjahr

2015

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We present a measurement of the asymmetry ACP between same-sign inclusive dilepton samples [scriptl]+[scriptl]+ and [scriptl]-[scriptl]- ([scriptl]=e, mu ) from semileptonic B decays in Y(4S) arrow right BB- events, using the complete data set recorded by the BABAR experiment near the Y(4S) resonance, corresponding to 471x106 BB- pairs. The asymmetry ACP allows comparison between the mixing probabilities P(B-0 arrow right B0) and P(B0 arrow right B-0), and therefore probes CP and T violation. The result, ACP=[-3.9+ or -3.5(stat) + or -1.9(syst)]x10-3, is consistent with the standard model expectation.