Journal article

Measurements of branching fraction ratios and CP-asymmetries in suppressed B-→D(→K+π-)K- and B-→D(→K+π-)π- decays

Abstract:

We report the first reconstruction in hadron collisions of the suppressed decays B-→D(→K+π-)K- and B-→D(→K+π-)π-, sensitive to the Cabibbo-Kobayashi-Maskawa phase γ, using data from 7fb-1 of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal for the B -→D(→K+π-)K- suppressed mode with a significance of 3.2 standard deviations, and measure the ratios of the suppressed to favored branching fractions R(K)=[22.0±8.6(stat) ±2.6(syst)]×10-3, R+(...

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Publisher copy:
10.1103/PhysRevD.84.091504

Authors

Journal:
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume:
84
Issue:
9
Publication date:
2011-11-30
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
Source identifiers:
221539
Local pid:
pubs:221539
Language:
English