New model for nucleon generalized parton distributions

Conference · Wed Jan 01 00:00:00 EST 2014 · International Journal of Modern Physics: Conference Series

DOI:https://doi.org/10.1142/S2010194514600349· OSTI ID:1116337

Radyushkin, Anatoly V. ^[1]

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1. JLAB, Newport News, VA (United States)

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}.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1116337
• Report Number(s): JLAB-THY-13-1775; DOE/OR-23177-2733; TRN: US1400152
• Journal Information: International Journal of Modern Physics: Conference Series, Vol. 25; Conference: QCD Evolution 2013, Newport News, VA (United States), 6-10 May 2013; ISSN 2010-1945
• Publisher: World Scientific
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS