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 469fb-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.

Search for CP violation in the decays D^{±}→K_{S}^{0}K^{±}, D_{s}^{±}→K_{S}^{0}K^{±}, and D_{s}^{±}→K_{S}^{0}π^{±} / J. P., L., V., P., V., T., E., G., A., P., G., E., B., S., D. N., B., L. T., K., Kolomensky, Y.u.G., G., L., H., K., T., S., D. J., A., C., H., T. S., M., J. A., M., R. Y., S.o., A., K., V. E., B., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 87:(2013), pp. 052012-1-052012-10. [10.1103/PhysRevD.87.052012]

Search for CP violation in the decays D^{±}→K_{S}^{0}K^{±}, D_{s}^{±}→K_{S}^{0}K^{±}, and D_{s}^{±}→K_{S}^{0}π^{±}

LANCERI, LIVIO;VITALE, LORENZO;
2013-01-01

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 469fb-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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2768729
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