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Ward Identities, B-> rho Form Factors and |V_ub|
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Ward Identities, B-> \rho Form Factors and |V_ub|
classification
hep-ph
keywords
factorsformidentitiesmesonvectorwardapproachesbeauty
read the original abstract
The exclusive FCNC beauty semileptonic decay B-> \rho is studied using Ward identities in a general vector meson dominance framework, predicting vector meson couplings involved. The long distance contributions are discussed which results to obtain form factors and |V_ub|. A detailed comparison is given with other approaches.
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