We report a search for CP violation in the decay τ -→π -KS0(0π0)ν τ using a data set of 437×106 τ-lepton pairs, corresponding to an integrated luminosity of 476fb -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., Poireau, V., Tisserand, V., Tico J., G., Grauges, E., Martinelli, M., et al. (2012). Search for CP violation in the decay τ -→π -KS0(0π0)ν τ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(3) [10.1103/PhysRevD.85.031102].

Search for CP violation in the decay τ -→π -KS0(0π0)ν τ

Martinelli M.;CARPINELLI, Massimo;
2012

Abstract

We report a search for CP violation in the decay τ -→π -KS0(0π0)ν τ using a data set of 437×106 τ-lepton pairs, corresponding to an integrated luminosity of 476fb -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)%.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2012
85
3
031102
none
Lees, J., Poireau, V., Tisserand, V., Tico J., G., Grauges, E., Martinelli, M., et al. (2012). Search for CP violation in the decay τ -→π -KS0(0π0)ν τ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(3) [10.1103/PhysRevD.85.031102].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389268
Citazioni
  • Scopus 48
  • ???jsp.display-item.citation.isi??? 27
Social impact