Light-cone distribution functions for B decays at subleading order in 1/mb

Details Light-cone distribution functions for B decays at subleading order in 1/mb Light-cone distribution functions for B decays at subleading order in 1/mb

2001-02-08

arxiv.org/abs/hep-ph/0102089v1

Phys.Rev. D68 (2003) 094001

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 3 figures, revtex

Scientific paper

10.1103/PhysRevD.68.094001

We construct the higher twist structure functions that describe inclusive b hadron decays in regions of phase space where the hadronic decay products carry high energy but have low invariant mass. We show that, for B meson decays, there are four new non-vanishing matrix elements of non-local operators. We show that to subleading twist these decays are parametrized in terms of four functions. We compute the tree-level matching for a general heavy-to-light current and apply it to B -> X_s gamma. Using a simple model for these functions we estimate the subleading twist contributions to this decay.

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