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The role of higher twists in determining polarized parton densities

Abstract

The higher twist corrections h{sup N}(x)/Q{sup 2} to the spin dependent proton and neutron g{sub 1} structure functions are extracted from the world data on g{sub 1}(x,Q{sup 2}) in a model independent way and found to be non-negligible. Their role in determining the polarized parton densities in the nucleon is discussed. It is also considered how the results are influenced by the recent JLab and HERMES inclusive DIS data. (author)
Authors:
Leader, E; [1]  Sidorov, A V; [2]  Stamenov, D B [3] 
  1. Imperial College London, London (United Kingdom)
  2. Joint Institute for Nuclear Research, Bogolyubov Laboratory of Theoretical Physics, Dubna (Russian Federation)
  3. Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia (Bulgaria)
Publication Date:
Jul 01, 2004
Product Type:
Journal Article
Resource Relation:
Journal Name: Czechoslovak Journal of Physics; Journal Volume: 54; Journal Issue: Suppl.B; Conference: SPIN-PRAHA 2003: Advanced studies institute on symmetries and spin, Prague (Czech Republic), 12-19 Jul 2003; Other Information: 15 refs., 3 figs; PBD: 2004
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NEUTRONS; PARTONS; PROTONS; SPIN; STRUCTURE FUNCTIONS
OSTI ID:
20617902
Country of Origin:
Czech Republic
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0011-4626; CZYPAO; Other: Grant 02-01-00601; 03-02-16816; 587; Contract Ph-1010; TRN: CZ0531412061195
Submitting Site:
INIS
Size:
page(s) B21-B28
Announcement Date:
Aug 21, 2005

Citation Formats

Leader, E, Sidorov, A V, and Stamenov, D B. The role of higher twists in determining polarized parton densities. Czech Republic: N. p., 2004. Web.
Leader, E, Sidorov, A V, & Stamenov, D B. The role of higher twists in determining polarized parton densities. Czech Republic.
Leader, E, Sidorov, A V, and Stamenov, D B. 2004. "The role of higher twists in determining polarized parton densities." Czech Republic.
@misc{etde_20617902,
title = {The role of higher twists in determining polarized parton densities}
author = {Leader, E, Sidorov, A V, and Stamenov, D B}
abstractNote = {The higher twist corrections h{sup N}(x)/Q{sup 2} to the spin dependent proton and neutron g{sub 1} structure functions are extracted from the world data on g{sub 1}(x,Q{sup 2}) in a model independent way and found to be non-negligible. Their role in determining the polarized parton densities in the nucleon is discussed. It is also considered how the results are influenced by the recent JLab and HERMES inclusive DIS data. (author)}
journal = []
issue = {Suppl.B}
volume = {54}
journal type = {AC}
place = {Czech Republic}
year = {2004}
month = {Jul}
}