Baryon to meson transition distribution amplitudes and their spectral representation

Details Baryon to meson transition distribution amplitudes and their spectral representation Baryon to meson transition distribution amplitudes and their spectral representation

2010-11-30

arxiv.org/abs/1012.0030v1

AIP Conf.Proc.1350:237-240,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented at International Workshop on Diffraction in High-Energy Physics DIFFRACTION 2010, September 10 - 15, 2010 Otran

Scientific paper

10.1103/PhysRevD.82.094030

We consider the problem of construction of a spectral representation for nucleon to meson transition distribution amplitudes (TDAs), non-diagonal matrix elements of nonlocal three quark light-cone operators between a nucleon and a meson states. We introduce the notion of quadruple distributions and generalize Radyshkin's factorized Ansatz for this issue. Modelling of baryon to meson TDAs in the complete domain of their definition opens the way to quantitative estimates of cross-sections for various hard exclusive reactions.

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