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Title: Impact of recent COMPASS data on polarized parton distributions and structure functions

Abstract

We perform a new extraction of polarized parton distribution functions (PPDFs) from the spin structure function experimental data in the fixed-flavor number scheme. In this analysis, we include recent proton and deuteron spin structure functions obtained by the COMPASS Collaboration. We examine the impact of the new COMPASS proton and deuteron data on the polarized parton densities and compare with results from our previous study (KATAO PPDFs), which used the Jacobi polynomial approach. We find the extracted PPDFs of the proton, neutron, and deuteron structure functions are in very good agreement with the experimental data. The results for extracted PPDFs are also compared with available theoretical models from the literature.

Authors:
 [1];  [1];  [1];  [2]
  1. Semnan Univ. (Iran)
  2. Southern Methodist Univ., Dallas, TX (United States)
Publication Date:
Research Org.:
Southern Methodist Univ., Dallas, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1472204
Alternate Identifier(s):
OSTI ID: 1498842
Grant/Contract Number:  
sc0010129
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Salimi-Amiri, M., Khorramian, A., Abdolmaleki, H., and Olness, F. I. Impact of recent COMPASS data on polarized parton distributions and structure functions. United States: N. p., 2018. Web. doi:10.1103/physrevd.98.056020.
Salimi-Amiri, M., Khorramian, A., Abdolmaleki, H., & Olness, F. I. Impact of recent COMPASS data on polarized parton distributions and structure functions. United States. doi:10.1103/physrevd.98.056020.
Salimi-Amiri, M., Khorramian, A., Abdolmaleki, H., and Olness, F. I. Mon . "Impact of recent COMPASS data on polarized parton distributions and structure functions". United States. doi:10.1103/physrevd.98.056020.
@article{osti_1472204,
title = {Impact of recent COMPASS data on polarized parton distributions and structure functions},
author = {Salimi-Amiri, M. and Khorramian, A. and Abdolmaleki, H. and Olness, F. I.},
abstractNote = {We perform a new extraction of polarized parton distribution functions (PPDFs) from the spin structure function experimental data in the fixed-flavor number scheme. In this analysis, we include recent proton and deuteron spin structure functions obtained by the COMPASS Collaboration. We examine the impact of the new COMPASS proton and deuteron data on the polarized parton densities and compare with results from our previous study (KATAO PPDFs), which used the Jacobi polynomial approach. We find the extracted PPDFs of the proton, neutron, and deuteron structure functions are in very good agreement with the experimental data. The results for extracted PPDFs are also compared with available theoretical models from the literature.},
doi = {10.1103/physrevd.98.056020},
journal = {Physical Review D},
number = 5,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/physrevd.98.056020

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