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High-x structure function of the virtually free neutron

Wim Cosyn UGent and Misak M Sargsian (2016) PHYSICAL REVIEW C. 93.
abstract
The pole extrapolation method is applied to the semi-inclusive inelastic electron scattering off the deuteron with tagged spectator protons to extract the high-x structure function of the neutron. This approach is based on the extrapolation of the measured cross sections at different momenta of the spectator proton to the nonphysical pole of the bound neutron in the deuteron. The advantage of the method is in the possibility of suppression of the nuclear effects in a maximally model-independent way. The neutron structure functions obtained in this way demonstrate a surprising x dependence at x≥0.6 and 1.6≤Q2≤3.38GeV2, indicating a possible rise of the neutron-to-proton structure functions ratio. If the observed rise is valid in the true deep inelastic region then it may indicate new dynamics in the generation of high-x quarks in the nucleon. One such mechanism we discuss is the possible dominance of short-range isosinglet quark-quark correlations that can enhance the d-quark distribution in the proton.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
TAGGED STRUCTURE FUNCTIONS
journal title
PHYSICAL REVIEW C
Phys. Rev. C
volume
93
article number
055205
pages
7 pages
Web of Science type
Article
Web of Science id
000376639700008
JCR category
PHYSICS, NUCLEAR
JCR impact factor
3.82 (2016)
JCR rank
5/20 (2016)
JCR quartile
1 (2016)
ISSN
2469-9985
DOI
10.1103/PhysRevC.93.055205
project
HPC-UGent: the central High Performance Computing infrastructure of Ghent University
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7224471
handle
http://hdl.handle.net/1854/LU-7224471
date created
2016-05-24 09:27:56
date last changed
2017-08-02 11:31:37
@article{7224471,
  abstract     = {The pole extrapolation method is applied to the semi-inclusive inelastic electron scattering off the deuteron with tagged spectator protons to extract the high-x structure function of the neutron. This approach is based on the extrapolation of the measured cross sections at different momenta of the spectator proton to the nonphysical pole of the bound neutron in the deuteron. The advantage of the method is in the possibility of suppression of the nuclear effects in a maximally model-independent way. The neutron structure functions obtained in this way demonstrate a surprising x dependence at x\ensuremath{\geq}0.6 and 1.6\ensuremath{\leq}Q2\ensuremath{\leq}3.38GeV2, indicating a possible rise of the neutron-to-proton structure functions ratio. If the observed rise is valid in the true deep inelastic region then it may indicate new dynamics in the generation of high-x quarks in the nucleon. One such mechanism we discuss is the possible dominance of short-range isosinglet quark-quark correlations that can enhance the d-quark distribution in the proton.},
  articleno    = {055205},
  author       = {Cosyn, Wim and Sargsian, Misak M},
  issn         = {2469-9985},
  journal      = {PHYSICAL REVIEW C},
  keyword      = {TAGGED STRUCTURE FUNCTIONS},
  language     = {eng},
  pages        = {7},
  title        = {High-x structure function of the virtually free neutron},
  url          = {http://dx.doi.org/10.1103/PhysRevC.93.055205},
  volume       = {93},
  year         = {2016},
}

Chicago
Cosyn, Wim, and Misak M Sargsian. 2016. “High-x Structure Function of the Virtually Free Neutron.” Physical Review C 93.
APA
Cosyn, W., & Sargsian, M. M. (2016). High-x structure function of the virtually free neutron. PHYSICAL REVIEW C, 93.
Vancouver
1.
Cosyn W, Sargsian MM. High-x structure function of the virtually free neutron. PHYSICAL REVIEW C. 2016;93.
MLA
Cosyn, Wim, and Misak M Sargsian. “High-x Structure Function of the Virtually Free Neutron.” PHYSICAL REVIEW C 93 (2016): n. pag. Print.