| Abstract: | A combination of three LHCb measurements of the CKM angle gamma is
presented. The decays B->DK and B->Dpi are used, where D denotes an admixture
of D0 and D0-bar mesons, decaying into KK, pipi, Kpi, Kpipipi, KSpipi,
or KSKK final states. Combining results from B->DK decays alone a best-fit
value of gamma=70.5 deg is found, and confidence intervals are set gamma in
[54.9, 85.4] deg at 68% CL, gamma in [41.8, 98.1] deg at 95% CL.
The best-fit value of gamma found from a combination of results from
B->Dpi decays alone, is gamma=97.1 deg, and the confidence intervals gamma
in [8.8, 43.8] deg or [79.3, 137.4] deg or [165.8, 177.1] deg at 68% CL are
set, without constraint at 95% CL.
The combination of results from B->DK and B->Dpi decays gives a best-fit
value of gamma=86.0 deg and the confidence intervals gamma in [49.0, 72.5]
deg or [79.1, 94.2] deg at 68% CL, gamma in [35.2, 105.6] deg at 95% CL are
set. All values are expressed modulo 180 deg. |
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