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 — preprints:2000:ttp00-27 [2016/03/17 11:03] (current) Line 1: Line 1: + ====== TTP00-27 Light-Cone Distribution Functions for $B$ Decays at subleading Order in $1/m_b$ ====== + + + 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. + + |**Christian Bauer, Michael Luke, Thomas Mannel**  | + |**  Phys.Rev.  D68 094001 2003  **  | + | {{preprints:2000:ttp00-27.pdf|PDF}} {{preprints:2000:ttp00-27.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0102089|arXiv]]   | + | |