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http://bura.brunel.ac.uk/handle/2438/19591
Title: | Measurement of gamma in B-+ -> D(*) K-+ and B-+ -> D K*-+ decays with a Dalitz analysis of D -> Ks pi- pi+ |
Authors: | Aubert, B Collaboration, BABAR Kyberd, P |
Issue Date: | 27-Jul-2005 |
Publisher: | ArXiv |
Citation: | ArXiv, 2005, pp. 1 - 22 |
Abstract: | We present a measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase gamma with a Dalitz plot analysis of neutral D-meson decays to the Ks pi- pi+ final state from B-+ -> D(*) K-+ and B-+ -> D K*-+ decays, using a sample of 227 million BBbar pairs collected by the BaBar detector. We measure gamma = 67 +/- 28 +/- 13 +/- 11, where the first error is statistical, the second is the experimental systematic uncertainty and the third reflects the Dalitz model uncertainty. This result suffers from a two-fold ambiguity. The contribution to the Dalitz model uncertainty due to the description of the pipi S-wave in D0 -> Ks pi- pi+, evaluated using a K-matrix formalism, is found to be 3 degrees. |
URI: | http://bura.brunel.ac.uk/handle/2438/19591 |
ISSN: | 2331-8422 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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