[Jlab-seminars] Theory Center Seminar

[Mary Fox]

Theory Center Seminar
Monday, May 19, 2014
1:00 p.m. (coffee at 12:45 p.m.)
CEBAF Center, Room F224/225

Vladimir Braun
University of Regensburg


*Finite-t and Target Mass Corrections in Deeply Virtual Compton Scattering*

I present an approach to calculate 'kinematic' power corrections to 
DVCS. Topics covered are:
1) Rigorous separation of 'kinematic' and 'dynamic' higher-twists
2) Technique to calculate LO contributons based on conformal symmetry
3) Gauge and translation invariance
4) QCD factorization of kinematoic power corrections to twist-4 accuracy
5) Numerical estimates for the size of such corrections in helicity 
amplitudes and (preliminary) Compton
    form factors
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