Search for CP violation in the decays D[superscript ±]→K[subscript S][superscript 0]K[superscript ±], D[subscript s][superscript ±]→K[subscript S][superscript 0]K[superscript ±], and D[subscript s][superscript ±]→K[subscript S][superscript 0]π[superscript ±]
Author(s)
Dujmic, Denis; Sciolla, Gabriella; Cowan, Ray F
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We report a search for CP violation in the decay modes D[superscript ±]→K[subscript S][superscript 0]K[superscript ±], D[subscript s][superscript ±]→K[subscript S][superscript 0]K[superscript ±], and D[subscript s][superscript ±]→K[subscript S][superscript 0]π[superscript ±] using a data set corresponding to an integrated luminosity of 469 fb[superscript -1] collected with the BABAR detector at the PEP-II asymmetric energy e[superscript+]e[superscript -] storage rings. The decay rate CP asymmetries, A[subscript CP], 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[superscript ±]→K[subscript S][superscript 0]K[superscript ±] and D[subscript s][superscript ±]→K[subscript S][superscript 0]K[superscript ±] modes, and (+0.332±0.006)% for the D[subscript s][superscript ±]→K[subscript S][superscript 0]π[superscript ±] mode]. They are the most precise determinations to date.
Date issued
2013-03Department
Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. P. et al. “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^{±}.” Physical Review D 87.5 (2013). © 2013 American Physical Society
Version: Final published version
ISSN
1550-7998
1550-2368