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Search for CP violation using T-odd correlations in D(+) -> K(+)K(S)(0) pi(+)pi(-) and D(s)(+) -> K(+)K(S)(0) pi(+)pi(-) decays

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Lees, J. P., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., Milanes, D. A., Palano, A., Pappagallo, M., Eigen, Gerald et al.
(2011) Search for CP violation using T-odd correlations in D(+) -> K(+)K(S)(0) pi(+)pi(-) and D(s)(+) -> K(+)K(S)(0) pi(+)pi(-) decays. Physical Review D, Vol.84 (No.3). 031103. doi:10.1103/PhysRevD.84.031103 ISSN 0556-2821.

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Abstract

We search for CP violation in a sample of 20 000 Cabibbo-suppressed decays, D+→K+KS0π+π-, and 30 000 Cabibbo-favored decays, Ds+→K+KS0π+π-. We use 520  fb-1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e- collider operating at center of mass energies near 10.6 GeV. We search for CP violation in the difference between the T-odd asymmetries obtained using triple product correlations of the D+ (Ds+) and D- (Ds-) decays, respectively. The T violation parameter values obtained are AT(D+)=(-12.0±10.0stat±4.6syst)×10-3 and AT(Ds+)=(-13.6±7.7stat±3.4syst)×10-3, which are consistent with the standard model expectations.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): CP violation (Nuclear physics), Standard model (Nuclear physics)
Journal or Publication Title: Physical Review D
Publisher: American Physical Society
ISSN: 0556-2821
Official Date: September 2011
Dates:
DateEvent
September 2011UNSPECIFIED
Volume: Vol.84
Number: No.3
Page Range: 031103
DOI: 10.1103/PhysRevD.84.031103
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: United States. Dept. of Energy (DOE), National Science Foundation (U.S.) (NSF), Natural Sciences and Engineering Research Council Canada ( NSERC), France. Commissariat à l'énergie atomique (CEA), Institut national de physique nucléaire et de physique des particules (IN2P3), Germany. Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Istituto nazionale di fisica nucleare (INFN), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Norges forskningsråd (NFR) , Ministry of Education and Science of the Russian Federation (MESRF), Spain. Ministerio de Ciencia e Innovación (MCI), Science and Technology Facilities Council (Great Britain) (STFC)

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