Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using the four-body decay channels D 0→K-K+π-π+, D+→KS0K+π -π+, and Ds+→K S0K+π-π+. The T violation asymmetry is obtained using triple-product correlations and assuming the validity of the CPT theorem. We find the asymmetry values to be A Tviol(D0)=0.010±0.057(stat.)±0.037(syst.), ATviol(D+)=0.023±0.062(stat.)±0.022(syst.), and ATviol(Ds+)=-0.036±0.067(stat.) ±0.023(syst.). Each measurement is consistent with no T violation. New measurements of the CP asymmetries for some of these decay modes are also presented.

Link, J., Yager, P., Anjos, J., Bediaga, I., Castromonte, C., Machado, A., et al. (2005). Search for T violation in charm meson decays. PHYSICS LETTERS. SECTION B, 622(3-4), 239-248 [10.1016/j.physletb.2005.07.024].

Search for T violation in charm meson decays

Gianini G.;
2005

Abstract

Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using the four-body decay channels D 0→K-K+π-π+, D+→KS0K+π -π+, and Ds+→K S0K+π-π+. The T violation asymmetry is obtained using triple-product correlations and assuming the validity of the CPT theorem. We find the asymmetry values to be A Tviol(D0)=0.010±0.057(stat.)±0.037(syst.), ATviol(D+)=0.023±0.062(stat.)±0.022(syst.), and ATviol(Ds+)=-0.036±0.067(stat.) ±0.023(syst.). Each measurement is consistent with no T violation. New measurements of the CP asymmetries for some of these decay modes are also presented.
Articolo in rivista - Articolo scientifico
Physics
English
2005
622
3-4
239
248
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Castromonte, C., Machado, A., et al. (2005). Search for T violation in charm meson decays. PHYSICS LETTERS. SECTION B, 622(3-4), 239-248 [10.1016/j.physletb.2005.07.024].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455485
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