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Journal articles
Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events
J. P. Lees
1
V. Poireau
1
V. Tisserand
1
N. Arnaud
M. Davier
2
D. Derkach
2
G. Grosdidier
2
F. Le Diberder
2
A. M. Lutz
2
B. Malaescu
2
P. Roudeau
2
A. Stocchi
2
G. Wormser
2
G. Wormser 2
Author
1
LAPP - Laboratoire d'Annecy de Physique des Particules (9 Chemin de Bellevue - BP 110 - 74941 Annecy-le-Vieux CEDEX - France - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5814 (France)
2
LAL - Laboratoire de l'Accélérateur Linéaire (Centre Scientifique d'Orsay B.P. 34 91898 ORSAY Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8607 (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
Abstract : We present a measurement of the asymmetry ACP between same-sign inclusive dilepton samples ℓ+ℓ+ and ℓ−ℓ− (ℓ=e,μ) from semileptonic B decays in Y(4S) --> BBbar events, using the complete data set recorded by the BABAR experiment near the Y(4S) resonance, corresponding to 471 million BBbar pairs. The asymmetry A_{CP} allows comparison between the mixing probabilities P(B0bar --> B0) and P(B0 --> B0bar), and therefore probes CP and T violation. The result, ACP=(−3.9±3.5(stat)±1.9(syst))×10−3, is consistent with the Standard Model expectation.
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Journal articles
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http://hal.in2p3.fr/in2p3-01081898
Contributor : Sabine Starita Connect in order to contact the contributor
Submitted on : Wednesday, November 12, 2014 - 10:31:02 AM
Last modification on : Friday, November 6, 2020 - 3:27:28 AM
Contributor : Sabine Starita Connect in order to contact the contributor
Submitted on : Wednesday, November 12, 2014 - 10:31:02 AM
Last modification on : Friday, November 6, 2020 - 3:27:28 AM
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- HAL Id : in2p3-01081898, version 1
- ARXIV : 1411.1842
- DOI : 10.1103/PhysRevLett.114.081801
Citation
J. P. Lees, V. Poireau, V. Tisserand, N. Arnaud, M. Davier, et al.. Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events. Physical Review Letters, American Physical Society, 2015, 114 (8), pp.081801. ⟨10.1103/PhysRevLett.114.081801⟩. ⟨in2p3-01081898⟩
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