We report a search for CP violation in the decay τ−→π−K0S(≥0π0)ντ using a data set of 437×106 τ-lepton pairs, corresponding to an integrated luminosity of 476  fb−1, collected with the BABAR detector at the PEP-II asymmetric-energy e+e− storage rings. The CP-violating decay-rate asymmetry is determined to be (−0.36±0.23±0.11)% approximately 2.8 standard deviations from the standard model prediction of (0.36±0.01)%.

Lees, J.P., Poireau, V., Tisserand, V., Tico, J.G., Grauges, E., Martinelli, M., et al. (2012). Search for CP violation in the decay tau(-) -> pi K--(s)0 (>= 0 pi(0))v(tau). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(3), 1-8 [10.1103/PhysRevD.85.031102].

Search for CP violation in the decay tau(-) -> pi K--(s)0 (>= 0 pi(0))v(tau)

PATRIGNANI, CLAUDIA;
2012

Abstract

We report a search for CP violation in the decay τ−→π−K0S(≥0π0)ντ using a data set of 437×106 τ-lepton pairs, corresponding to an integrated luminosity of 476  fb−1, collected with the BABAR detector at the PEP-II asymmetric-energy e+e− storage rings. The CP-violating decay-rate asymmetry is determined to be (−0.36±0.23±0.11)% approximately 2.8 standard deviations from the standard model prediction of (0.36±0.01)%.
2012
Lees, J.P., Poireau, V., Tisserand, V., Tico, J.G., Grauges, E., Martinelli, M., et al. (2012). Search for CP violation in the decay tau(-) -> pi K--(s)0 (>= 0 pi(0))v(tau). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(3), 1-8 [10.1103/PhysRevD.85.031102].
Lees, J. P.; Poireau, V.; Tisserand, V.; Tico, J. Garra; 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/11585/537497
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