A Study of b --> c and b -->u Interference in the Decay B- --> [K+ pi-]_D K*-

Details A Study of b --> c and b -->u Interference in the Decay B- --> [K+ pi-]_D K*- A Study of b --> c and b -->u Interference in the Decay B- --> [K+ pi-]_D K*-

2005-07-29

arxiv.org/abs/hep-ex/0508001v1

Phys.Rev.D72:071104,2005

Physics

High Energy Physics

High Energy Physics - Experiment

submitted to PRD-RC, 8 pages, 5 figures, 1 table

Scientific paper

10.1103/PhysRevD.72.071104

Using a sample of 232 x 10^6 Upsilon(4S)--> B B-bar events collected with the BABAR detector at the PEP-II B-factory we study the decay B- --> [K+ pi-]_D K*- where the K+ pi- is either from a Cabibbo-favored D0-bar decay or doubly-suppressed D0 decay. We measure two observables that are sensitive to the CKM angle gamma; the ratio R of the charge-averaged branching fractions for the suppressed and favored decays; and the charge asymmetry A of the suppressed decays: R=0.046 +/- 0.031(stat.) +/- 0.008(syst.) A=-0.22 +/- 0.61(stat.) +/- 0.17(syst.).

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