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13-14 janvier 2011
LPC Clermont
Fuseau horaire Europe/Paris

Baryon to meson transition distribution amplitudes and their spectral representation in terms of quadruple distributions

14 janv. 2011 à 16:10
20m
Amphithéâtre Recherche (LPC Clermont)

Amphithéâtre Recherche

LPC Clermont

Campus des Cézeaux Bât. 6,7,8 Physique 24, avenue des Landais F- 63177 Aubière Cedex
15+5 Main

Orateur

Dr Kirill Semenov-Tian-Shansky (CPHT Ecole Polytechnique, LPT Orsay)

Description

We consider the problem of construction of a spectral representation for nucleon to meson transition distribution amplitudes (TDAs), non-diagonal matrix elements of non local 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.

Auteur principal

Dr Kirill Semenov-Tian-Shansky (CPHT Ecole Polytechnique, LPT Orsay)

Co-auteurs

Dr Bernard Pire (CPHT Ecole Polytechnique) Dr Lech Szymanowski (Soltan Institute for Nuclear Studies, Warsaw, Poland)

Documents de présentation

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