skip to main content

DOE PAGESDOE PAGES

Title: First moments of nucleon generalized parton distributions

We extrapolate the first moments of the generalized parton distributions using heavy baryon chiral perturbation theory. The calculation is based on the one loop level with the finite range regularization. The description of the lattice data is satisfactory, and the extrapolated moments at physical pion mass are consistent with the results obtained with dimensional regularization, although the extrapolation in the momentum transfer to t=0 does show sensitivity to form factor effects, which lie outside the realm of chiral perturbation theory. We discuss the significance of the results in the light of modern experiments as well as QCD inspired models.
Authors:
 [1] ;  [2]
  1. Chinese Academy of Sciences (CAS), Beijing (China); Theoretical Physical Center for Science Facilities (TPCSF), Beijing (China); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Univ. of Adelaide, SA (Australia)
Publication Date:
OSTI Identifier:
982096
Report Number(s):
JLAB-THY--10-1183; DOE/OR/23177--1225
Journal ID: ISSN 1550-7998; PRVDAQ; TRN: US1004370
Grant/Contract Number:
AC05-06OR23177
Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 81; Journal Issue: 11; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BARYONS; EXTRAPOLATION; FORM FACTORS; MOMENTUM TRANSFER; NUCLEONS; PERTURBATION THEORY; PIONS; QUANTUM CHROMODYNAMICS; SENSITIVITY