We search for CP violation in a sample of 20 000 Cabibbo-suppressed decays, D+→K+K0Sπ+π−, and 30 000 Cabibbo-favored decays, D+s→K+K0Sπ+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+ (D+s) and D− (D−s) decays, respectively. The T violation parameter values obtained are T(D+)=(−12.0±10.0stat±4.6syst)×10−3 and T(D+s)=(−13.6±7.7stat±3.4syst)×10−3, which are consistent with the standard model expectations.

Lees, J.P., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., 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, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 84(3), 1-9 [10.1103/PhysRevD.84.031103].

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

PATRIGNANI, CLAUDIA;
2011

Abstract

We search for CP violation in a sample of 20 000 Cabibbo-suppressed decays, D+→K+K0Sπ+π−, and 30 000 Cabibbo-favored decays, D+s→K+K0Sπ+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+ (D+s) and D− (D−s) decays, respectively. The T violation parameter values obtained are T(D+)=(−12.0±10.0stat±4.6syst)×10−3 and T(D+s)=(−13.6±7.7stat±3.4syst)×10−3, which are consistent with the standard model expectations.
2011
Lees, J.P., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., 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, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 84(3), 1-9 [10.1103/PhysRevD.84.031103].
Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/543519
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