Ward Identities, B-> ρForm Factors and |V_ub|

Details Ward Identities, B-> ρForm Factors and |V_ub| Ward Identities, B-> ρForm Factors and |V_ub|

2003-04-18

arxiv.org/abs/hep-ph/0304183v3

JHEP 0309:065,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages+four postscript figures, an Appendix added

Scientific paper

10.1088/1126-6708/2003/09/065

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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