skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nucleon structure in the chiral regime with domain wall fermions on an improved staggered sea

Abstract

Moments of unpolarized, helicity, and transversity distributions, electromagnetic form factors, and generalized form factors of the nucleon are presented from a preliminary analysis of lattice results using pion masses down to 359 MeV. The twist two matrix elements are calculated using a mixed action of domain wall valence quarks and asqtad staggered sea quarks and are renormalized perturbatively. Several observables are extrapolated to the physical limit using chiral perturbation theory. Results are compared with experimental moments of quark distributions and electromagnetic form factors and phenomenologically determined generalized form factors, and the implications on the transverse structure and spin content of the nucleon are discussed.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA
Sponsoring Org.:
USDOE - Office of Energy Research (ER)
OSTI Identifier:
894645
Report Number(s):
JLAB-THY-06-553; DOE/ER/40150-4104; hep-lat/0610007
TRN: US0700190
DOE Contract Number:  
FC02-94ER40818; AC05-06OR23177; AC04-84150
Resource Type:
Conference
Resource Relation:
Conference: XXIVth International Symposium on Lattice Field Theory (Lattice 2006), 23-28 Jul 2006, Tucson, Arizona
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTROMAGNETIC FORM FACTORS; FERMIONS; FORM FACTORS; HELICITY; LATTICE FIELD THEORY; MATRIX ELEMENTS; NUCLEONS; PERTURBATION THEORY; PIONS; QUARKS; SEAS; SPIN; VALENCE

Citation Formats

R.G. Edwards, G. Fleming, Ph. Hagler, J.W. Negele, K. Orginos, A.V. Pochinsky, D.B. Renner, D.G. Richards, and W. Schroers. Nucleon structure in the chiral regime with domain wall fermions on an improved staggered sea. United States: N. p., 2006. Web.
R.G. Edwards, G. Fleming, Ph. Hagler, J.W. Negele, K. Orginos, A.V. Pochinsky, D.B. Renner, D.G. Richards, & W. Schroers. Nucleon structure in the chiral regime with domain wall fermions on an improved staggered sea. United States.
R.G. Edwards, G. Fleming, Ph. Hagler, J.W. Negele, K. Orginos, A.V. Pochinsky, D.B. Renner, D.G. Richards, and W. Schroers. Sun . "Nucleon structure in the chiral regime with domain wall fermions on an improved staggered sea". United States. https://www.osti.gov/servlets/purl/894645.
@article{osti_894645,
title = {Nucleon structure in the chiral regime with domain wall fermions on an improved staggered sea},
author = {R.G. Edwards and G. Fleming and Ph. Hagler and J.W. Negele and K. Orginos and A.V. Pochinsky and D.B. Renner and D.G. Richards and W. Schroers},
abstractNote = {Moments of unpolarized, helicity, and transversity distributions, electromagnetic form factors, and generalized form factors of the nucleon are presented from a preliminary analysis of lattice results using pion masses down to 359 MeV. The twist two matrix elements are calculated using a mixed action of domain wall valence quarks and asqtad staggered sea quarks and are renormalized perturbatively. Several observables are extrapolated to the physical limit using chiral perturbation theory. Results are compared with experimental moments of quark distributions and electromagnetic form factors and phenomenologically determined generalized form factors, and the implications on the transverse structure and spin content of the nucleon are discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {7}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: