Measurement Of The Branching Fractions Of The Rare Decays B0 To Ds Pi B0 To Ds Rho And B0 To Ds K
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Measurement of the Branching Fractions of the Rare Decays B0 to Ds(*)+pi-, B0 to Ds(*)+rho-, and B0 to Ds(*)-K(*)
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Total Pages | : 15 |
Release | : 2008 |
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Download Measurement of the Branching Fractions of the Rare Decays B0 to Ds(*)+pi-, B0 to Ds(*)+rho-, and B0 to Ds(*)-K(*) Book in PDF, Epub and Kindle
The authors report the measurement of the branching fractions of the rare decays B° → D{sub s}{sup (*)+}?−, B° → D{sub s}{sup (*)+}?−, and B° → D{sub s}{sup (*)-} K{sup (*)+} in a sample of 381 x 106?(4S) decays into B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy ee− storage ring. They present evidence for the decay B° → D{sub s}− K*+ and the vector-vector decays B° → D{sub s}{sup *+}?− and B° → D{sub s}{sup *-} K{sup *+}, as well as the first measurement of the vector meson polarization in these decays. They also determine the ratios of the CM-suppressed to CKM-favored amplitudes r(D{sup (*)}?) and r(D{sup (*)}?) in decays B° → D{sup (*)}{sup {+-}}?{sup {-+}} and B° → D{sup (*)}{sup {+-}}?{sup {-+}}, and comment on the prospects for measuring the Cp observable sin(2? +?).
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