Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Skewed parton distributions for B->pi transitions   We investigate the b-u skewed parton distributions (SPDs) for B->pi
transitions and determine the contributions from several sources (overlaps of
soft light-cone wave functions, quark-antiquark annihilations and meson
resonances). The B->pi transition form factors, which are relevant in exclusive
semi-leptonic and non-leptonic B-decays, are obtained by integrating the b-u
SPDs over the momentum fraction x. A phenomenological determination of the
relevant parameters allows us to predict the form factors and to obtain the
branching ratios for semi-leptonic B->pi decays.

18
The categories of this paper are: econ
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph