Search for CP violation in the Decays D±→K0SK±, D±s→K0SK±, and D±s→K0Sπ±

The BaBar Collaboration, Philip Clark

Research output: Contribution to journalArticlepeer-review

Abstract

We report a search for CP violation in the decay modes D±→K0SK±, D±s→K0SK±, and D±s→K0Sπ± using a data set corresponding to an integrated luminosity of 469fb−1 collected with the {\slshape B\kern-0.1em{\smaller A}\kern-0.1em B\kern-0.1em{\smaller A\kern-0.2em R}} 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±→K0SK± and D±s→K0SK± modes, and (+0.332±0.006) for the D±s→K0Sπ± mode). They are the most precise determinations to date.
Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Early online date14 Dec 2012
DOIs
Publication statusPublished - 18 Mar 2013

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