Search for CP Violation in the Decay $D^{+}\to K_S^0{K}^{+}$

Abstract

We search for CP violation in the decay $D^{+}\to K_S^0{K}^{+}$ using a data sample with an integrated luminosity of 977 fb${}^{-1}$ collected with the Belle detector at the KEKB $e^{+}{e}^{-}$ asymmetric-energy collider. No CP violation has been observed and the CP asymmetry in $D^{+}\to K_S^0{K}^{+}$ decay is measured to be $(-0.25\pm 0.28\pm 0.14)$, which is the most sensitive measurement to date. After subtracting CP violation due to $K^0-{\bar{K}}^0$ mixing, the CP asymmetry in $D^{+}\to {\bar{K}}^0{K}^{+}$ decay is found to be $(+0.08\pm 0.28\pm 0.14)$.

15 pages, 4 figures, 1 table. Published in JHEP

References in corpus (3)

• New Physics and CP Violation in Singly Cabibbo Suppressed D Decays
• Measurement of the difference of CP-violating asymmetries in D0 -> K+K- and D0 ->pi+pi- decays at CDF
• Conclusions from CDF Results on CP Violation in D^0 \to π^+π^-, K^+K^- and Future Tasks

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