Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-08-04
Phys.Rev.D82:094030,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
This is the second version of the paper. Important changes were made in the text and many errors in the formulas were correcte
Scientific paper
10.1103/PhysRevD.82.094030
We construct a spectral representation for the baron to meson transition distribution amplitudes (TDAs), i.e. matrix elements involving three quark correlators which arise in the description of baryon to meson transitions within the factorization approach to hard exclusive reactions. We generalize for these quantities the notion of double distributions introduced in the context of generalized parton distributions. We propose the generalization of A.Radyushkin's factorized Ansatz for the case of baryon to meson TDAs. Our construction opens the way to modeling of baryon to meson TDAs in their complete domain of definition and quantitative estimates of cross-sections for various hard exclusive reactions.
Pire Bernard
Semenov-Tian-Shansky Kirill
Szymanowski Lech
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