Aubert, B. et al. (2004) Search for B±→[K∓π±]DK± and Upper Limit on the b→u Amplitude in B±→DK±. Physical Review Letters, 93 (13). p. 131804. ISSN 0031-9007
Metadata only available from this repository.Abstract
We search for B±→[K∓π±]DK± decays, where [K∓π±]D indicates that the K∓π± pair originates from the decay of a D0 or D̅ 0. Results are based on 120×106 Υ(4S)→BB̅ decays collected with the BABAR detector at SLAC. We set an upper limit on the ratio RKπ≡ [Γ(B+→[K-π+]DK+)+Γ(B-→[K+π-]DK-)]/[Γ(B+→[K+π-]DK+)+Γ(B-→[K-π+]DK-)]<0.026 (90% C.L.). This constrains the amplitude ratio rB≡ |A(B-→D̅ 0K-)/A(B-→D0K-)|<0.22 (90% C.L.), consistent with expectations. The small value of rB favored by our analysis suggests that the determination of the Cabibbo-Kobayashi-Maskawa phase γ from B→DK will be difficult.
Item Type: | Article |
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Subjects: | Q Science > QC Physics |
Schools: | School of Applied Sciences |
Depositing User: | Sharon Beastall |
Date Deposited: | 07 Apr 2011 08:36 |
Last Modified: | 28 Aug 2021 11:05 |
URI: | http://eprints.hud.ac.uk/id/eprint/10055 |
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