Study of direct CP in charmed B decays and measurement of the CKM angle gamma at Belle

Abstract

The Belle experiment, running at the KEKB e^+ e^- asymmetric energy collider during the first decade of the century, has recorded 770 fb^-1 of data at the Upsilon(4S) resonance. A combination of recent Belle results obtained with this sample is used to perform a measurement of the CKM angle gamma. We use B^+- -> DK^+- and B^+- -> D^*K^+- decays where the D meson decays into K_S^0pi+pi-, Kpi, KK, pipi, K_S^0 pi^0 and K_S^0 eta final states and D^* decays into Dpi^0 and Dgamma. Belle obtains the most precise gamma measurement to date, gamma = (68^{+15}_{-14}) degree.

9 pages, 6 figures, Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity Triangle

References in corpus (1)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016

Cited by in corpus (16)

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• A study of CP violation in $B^{\pm }\to D{K}^{\pm }$ and $B^{\pm }\to D{\pi }^{\pm }$ decays with $D\to K_{\mathrm{S}}^0{K}^{\pm }{\pi }^{\mp }$ final states
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• Observation of the decay $B_s^0\to {\bar{D}}^0\varphi$
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• Shift in weak phase $\gamma$ due to CP asymmetries in $D$ decays to two pseudoscalar mesons
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