Generalised Parton Distributions of the Pion on the Transverse Lattice

Details Generalised Parton Distributions of the Pion on the Transverse Lattice Generalised Parton Distributions of the Pion on the Transverse Lattice

2004-09-13

arxiv.org/abs/hep-ph/0409139v2

Few Body Syst. 36 (2005) 69-76

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, invited talk at Light-Cone 2004, Amsterdam, 16-20 August, 2004, to appear in proceedings; v2 resolves T-violation iss

Scientific paper

10.1007/s00601-004-0080-0

The quark generalised parton distributions of the pion are calculated from lightcone wavefunctions in transverse lattice gauge theory at large N_c. The pion effective size is found to decrease with increasing momentum transfer. An analytic ansatz, consistent with finite boundstate lightcone energy conditions, is given for the lightcone momentum dependence of the wavefunctions. This leads to simple, universal predictions for the behaviour of the distributions near the endpoints, complementing numerical DLCQ data.

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