The b-u skewed parton distributions

Details The b-u skewed parton distributions The b-u skewed parton distributions

2000-03-10

arxiv.org/abs/hep-ph/0003097v1

Nucl.Phys. A680 (2000) 37-42

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 3 figures (using epsfig.sty, espcrc1.sty)

Scientific paper

10.1016/S0375-9474(00)00384-5

The b - u skewed parton distributions (SPDs) are discussed. The SPDs allow an unambigous superposition of overlap and resonsance contributions and their zeroth order moments represent the B - pi transition form factors. The values of the form factors at maximum recoil are found to be F+(0)=F0(0)=0.22 with an error of 0.05 in agreement with measurements of the B - pi pi branching ratio. The branching ratios for the semi-leptonic B - pi decays are evaluated too.

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