BaBar Collaboration (Including: Gershon, T. J., Harrison, P. F. and Latham, Thomas). (2013) Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B-+/- -> Dd(()*()) K-(*()+/-) decays. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 87 (Number 5). Article number 052015 . doi:doi: 10.5606/tgkdc.dergisi.2013.6683 ISSN 1550-7998.

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Abstract

We report the determination of the Cabibbo-Kobayashi-Maskawa CP-violating angle γ through the combination of various measurements involving B±→DK±, B±→D*K±, and B±→DK*± decays performed by the BABAR experiment at the PEP-II e+e- collider at SLAC National Accelerator Laboratory. Using up to 474 million BB̅ pairs, we obtain γ=(69-16+17)° modulo 180°. The total uncertainty is dominated by the statistical component, with the experimental and amplitude-model systematic uncertainties amounting to ±4°. The corresponding two-standard-deviation region is 41°<γ<102°. This result is inconsistent with γ=0 with a significance of 5.9 standard deviations.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher:	American Physical Society
ISSN:	1550-7998
Official Date:	22 March 2013
Dates:	Date Event 22 March 2013 Published 7 January 2013 Submitted
Volume:	Volume 87
Number:	Number 5
Page Range:	Article number 052015
DOI:	doi: 10.5606/tgkdc.dergisi.2013.6683
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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