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Title: Generalized parton distribution function (E{sup u}+E{sup d})(x,{xi},t) of the nucleon in the chiral quark soliton model

Abstract

The unpolarized spin-flip isoscalar generalized parton distribution function (E{sup u}+E{sup d})(x,{xi},t) is studied in the large-N{sub c} limit at a low normalization point in the framework of the chiral quark-soliton model. This is the first study of generalized parton distribution functions in this model, which appear only at the subleading order in the large-N{sub c} limit. Particular emphasis is put therefore on the demonstration of the theoretical consistency of the approach. The forward limit of (E{sup u}+E{sup d})(x,{xi},t) of which only the first moment-the anomalous isoscalar magnetic moment of the nucleon-is known phenomenologically, is computed numerically. Observables sensitive to (E{sup u}+E{sup d})(x,{xi},t) are discussed.

Authors:
; ;  [1];  [2];  [3]
  1. Institut fuer Theoretische Physik II, Ruhr-Universitaet Bochum (Germany)
  2. Universite de Liege au Sart Tilman, B-4000 Liege 1 (Belgium)
  3. Faculdade de Engenharia da Universidade do Porto, P-4000 Porto (Portugal)
Publication Date:
OSTI Identifier:
20705929
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 71; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.71.034011; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHIRAL SYMMETRY; CHIRALITY; DISTRIBUTION FUNCTIONS; MAGNETIC MOMENTS; NUCLEONS; PARTICLE STRUCTURE; PARTON MODEL; PARTONS; QUARK MODEL; QUARKS; SOLITONS; SPIN FLIP

Citation Formats

Ossmann, J, Schweitzer, P, Goeke, K, Polyakov, M V, Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188350, Urbano, D, and Centro de Fisica Computacional, Universidade de Coimbra, P-3000 Coimbra. Generalized parton distribution function (E{sup u}+E{sup d})(x,{xi},t) of the nucleon in the chiral quark soliton model. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.71.034011.
Ossmann, J, Schweitzer, P, Goeke, K, Polyakov, M V, Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188350, Urbano, D, & Centro de Fisica Computacional, Universidade de Coimbra, P-3000 Coimbra. Generalized parton distribution function (E{sup u}+E{sup d})(x,{xi},t) of the nucleon in the chiral quark soliton model. United States. https://doi.org/10.1103/PhysRevD.71.034011
Ossmann, J, Schweitzer, P, Goeke, K, Polyakov, M V, Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188350, Urbano, D, and Centro de Fisica Computacional, Universidade de Coimbra, P-3000 Coimbra. Tue . "Generalized parton distribution function (E{sup u}+E{sup d})(x,{xi},t) of the nucleon in the chiral quark soliton model". United States. https://doi.org/10.1103/PhysRevD.71.034011.
@article{osti_20705929,
title = {Generalized parton distribution function (E{sup u}+E{sup d})(x,{xi},t) of the nucleon in the chiral quark soliton model},
author = {Ossmann, J and Schweitzer, P and Goeke, K and Polyakov, M V and Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188350 and Urbano, D and Centro de Fisica Computacional, Universidade de Coimbra, P-3000 Coimbra},
abstractNote = {The unpolarized spin-flip isoscalar generalized parton distribution function (E{sup u}+E{sup d})(x,{xi},t) is studied in the large-N{sub c} limit at a low normalization point in the framework of the chiral quark-soliton model. This is the first study of generalized parton distribution functions in this model, which appear only at the subleading order in the large-N{sub c} limit. Particular emphasis is put therefore on the demonstration of the theoretical consistency of the approach. The forward limit of (E{sup u}+E{sup d})(x,{xi},t) of which only the first moment-the anomalous isoscalar magnetic moment of the nucleon-is known phenomenologically, is computed numerically. Observables sensitive to (E{sup u}+E{sup d})(x,{xi},t) are discussed.},
doi = {10.1103/PhysRevD.71.034011},
url = {https://www.osti.gov/biblio/20705929}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 3,
volume = 71,
place = {United States},
year = {2005},
month = {2}
}