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Title: New model for nucleon generalized parton distributions

We describe a new type of models for nucleon generalized parton distributions (GPDs) H and E. They are heavily based on the fact nucleon GPDs require to use two forms of double distribution (DD) representations. The outcome of the new treatment is that the usual DD+D-term construction should be amended by an extra term, {xi} E{sub +}{sup 1} (x,{xi}) which has the DD structure {alpha}/{beta} e({beta},{alpha}, with e({beta},{alpha}) being the DD that generates GPD E(x,{xi}). We found that this function, unlike the D-term, has support in the whole -1 <= x <= 1 region. Furthermore, it does not vanish at the border points |x|={xi}.
Authors:
 [1]
  1. JLAB, Newport News, VA (United States)
Publication Date:
OSTI Identifier:
1116337
Report Number(s):
JLAB-THY--13-1775; DOE/OR--23177-2733
Journal ID: ISSN 2010-1945; TRN: US1400152
DOE Contract Number:
AC05-06OR23177
Resource Type:
Conference
Resource Relation:
Journal Name: International Journal of Modern Physics: Conference Series; Journal Volume: 25; Conference: QCD Evolution 2013, Newport News, VA (United States), 6-10 May 2013
Publisher:
World Scientific
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC) (United States)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS