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Measurement of time-dependent CP asymmetry in B-0 -> K-S(0)pi(0)gamma decays

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Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., Tisserand, V., Tico, J. Garra, Grauges, E. et al.
(2008) Measurement of time-dependent CP asymmetry in B-0 -> K-S(0)pi(0)gamma decays. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.78 (No.7). article no. 071102. doi:10.1103/PhysRevD.78.071102 ISSN 1550-7998.

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Official URL: http://dx.doi.org/10.1103/PhysRevD.78.071102

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Abstract

We measure the time-dependent CP asymmetry in B-0 -> K-S(0)pi(0)gamma decays for two regions of K-S(0)-pi(0) invariant mass, m(K-S(0)pi(0)), using the final BABAR data set of 467x10(6) B(B)overbar pairs collected at the PEP-II e(+)e(-) collider at SLAC. We find 339 +/- 24 B-0 -> K-*0 gamma candidates and measure S-K(*)gamma=-0.03 +/- 0.29 +/- 0.03 and C-K(*)gamma=-0.14 +/- 0.16 +/- 0.03. In the range 1.1 < m(K-S(0)pi(0))< 1.8 GeV/c(2) we find 133 +/- 20 B-0 -> K-S(0)pi(0)gamma candidates and measure S-KS(0)pi(0)gamma=-0.78 +/- 0.59 +/- 0.09 and C-KS(0)pi(0)gamma=-0.36 +/- 0.33 +/- 0.04. The uncertainties are statistical and systematic, respectively.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
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: October 2008
Dates:
DateEvent
October 2008Published
Volume: Vol.78
Number: No.7
Number of Pages: 8
Page Range: article no. 071102
DOI: 10.1103/PhysRevD.78.071102
Status: Peer Reviewed
Publication Status: Published
Funder: DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), STFC (United Kingdom), Marie Curie EIF (European Union), A. P. Sloan Foundation

Data sourced from Thomson Reuters' Web of Knowledge

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