We report a search for CP violation in the decay modes D ±→KS0K±, Ds±→KS0K ±, and Ds±→KS0π± using a data set corresponding to an integrated luminosity of 469 fb-1 collected with the BABAR detector at the PEP-II asymmetric energy e+e - storage rings. The decay rate CP asymmetries, ACP, are determined to be (+0.13±0.36(stat)±0.25(syst))%, (-0.05±0.23(stat)±0.24(syst))%, and (+0.6±2.0(stat) ±0.3(syst))%, respectively. These measurements are consistent with zero, and also with the Standard Model prediction [(-0.332±0.006)% for the D±→KS0K± and Ds±→KS0K ± modes, and (+0.332±0.006)% for the Ds±→KS0π± mode]. They are the most precise determinations to date.

Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for CP violation in the decays D±→KS0K ±, Ds±→KS0K±, and Ds±→KS0π±. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(5) [10.1103/PhysRevD.87.052012].

Search for CP violation in the decays D±→KS0K ±, Ds±→KS0K±, and Ds±→KS0π±

CARPINELLI, Massimo
Membro del Collaboration Group
;
2013

Abstract

We report a search for CP violation in the decay modes D ±→KS0K±, Ds±→KS0K ±, and Ds±→KS0π± using a data set corresponding to an integrated luminosity of 469 fb-1 collected with the BABAR detector at the PEP-II asymmetric energy e+e - storage rings. The decay rate CP asymmetries, ACP, are determined to be (+0.13±0.36(stat)±0.25(syst))%, (-0.05±0.23(stat)±0.24(syst))%, and (+0.6±2.0(stat) ±0.3(syst))%, respectively. These measurements are consistent with zero, and also with the Standard Model prediction [(-0.332±0.006)% for the D±→KS0K± and Ds±→KS0K ± modes, and (+0.332±0.006)% for the Ds±→KS0π± mode]. They are the most precise determinations to date.
Articolo in rivista - Articolo scientifico
Scientifica
BABAR detector
English
Carpinelli Massimo (BABAR Collaboration)
Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for CP violation in the decays D±→KS0K ±, Ds±→KS0K±, and Ds±→KS0π±. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(5) [10.1103/PhysRevD.87.052012].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/389255
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