Model independent determination of the shape function for inclusive B decays and of the structure functions in DIS

Details Model independent determination of the shape function for inclusive B decays and of the structure functions in DIS Model independent determination of the shape function for inclusive B decays and of the structure functions in DIS

1998-04-27

arxiv.org/abs/hep-ph/9804416v1

Phys.Lett. B432 (1998) 411-420

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, LaTeX file

Scientific paper

10.1016/S0370-2693(98)00677-7

We present a method to compute, by numerical simulations of lattice QCD, the inclusive semileptonic differential decay rates of heavy hadrons and the structure functions which occur in deep inelastic scattering. The method is based on first principles and does not require any model assumption. It allows the prediction of the differential rate in B semileptonic decays for values of the recoiling hadronic mass W ~ sqrt(M_B Lambda_QCD), which is in the relevant region to extract |V_ub| from the end-point of the lepton spectrum in inclusive decays.

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