New shapes of the rho-meson light-cone distribution amplitudes: how can they influence the B --> rho e nu decay form factors

Details New shapes of the rho-meson light-cone distribution amplitudes: how can they influence the B --> rho e nu decay form factors New shapes of the rho-meson light-cone distribution amplitudes: how can they influence the B --> rho e nu decay form factors

2000-06-19

arxiv.org/abs/hep-ph/0006216v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, LaTeX (2 eps figures, JHEP.cls, epsfig), Contribution to proceedings of the 5-th workshop on Heavy Quark Physics, Dub

Scientific paper

We present new models of the rho-meson leading-twist light-cone distribution amplitudes based on the QCD sum rule approach with nonlocal condensates. Their shapes differ noticeably from that known in the literature. The phenomenological consequences for physically important process B --> rho e nu are discussed in the framework of the light-cone sum rules. The results are compared with those found recently by P.Ball and V.M.Braun (1997).

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