Polarized light ions and spectator nucleon tagging at EIC
Abstract
The neutron's deep-inelastic structure functions provide essential information for the flavor separation of the nucleon parton densities, the nucleon spin decomposition, and precision studies of QCD phenomena in the flavor-singlet and nonsinglet sectors. Traditional inclusive measurements on nuclear targets are limited by dilution from scattering on protons, Fermi motion and binding effects, final-state interactions, and nuclear shadowing at x ll 0.1. An Electron-Ion Collider (EIC) would enable next-generation measurements of neutron structure with polarized deuteron beams and detection of forward-moving spectator protons over a wide range of recoil momenta (0 < p(R) < several 100MeV in the nucleus rest frame). The free neutron structure functions could be obtained by extrapolating the measured recoil momentum distributions to the on-shell point. The method eliminates nuclear modifications and can be applied to polarized scattering, as well as to semi-inclusive and exclusive final states. We review the prospects for neutron structure measurements with spectator tagging at EIC, the status of R&D efforts, and the accelerator and detector requirements.
- Authors:
-
- Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia
- JLAB
- Old Dominion University, Norfolk, VA 23529, USA
- Florida International University, Miami, FL 33199, USA
- Pennsylvania State University, University Park, PA 16802, USA
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1163952
- Report Number(s):
- JLAB-THY-14-1913; arXiv:1407.3236; DOE/OR/23177-3126
R&D Project: 2013-LDRD-07
- DOE Contract Number:
- AC05-06OR23177
- Resource Type:
- Conference
- Journal Name:
- Proceedings of Science
- Additional Journal Information:
- Journal Volume: DIS; Journal Issue: 2014; Conference: DIS 2014, 28 Apr - 2 May 2014. Warsaw, Poland
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Guzey, Vadim, Higinbotham, Dougas W., Hyde, Charles, Nadel-Turonski, Pawel A., Park, Kijun, Sargsian, Misak M., Strikman, Mark, and Weiss, Christian. Polarized light ions and spectator nucleon tagging at EIC. United States: N. p., 2014.
Web.
Guzey, Vadim, Higinbotham, Dougas W., Hyde, Charles, Nadel-Turonski, Pawel A., Park, Kijun, Sargsian, Misak M., Strikman, Mark, & Weiss, Christian. Polarized light ions and spectator nucleon tagging at EIC. United States.
Guzey, Vadim, Higinbotham, Dougas W., Hyde, Charles, Nadel-Turonski, Pawel A., Park, Kijun, Sargsian, Misak M., Strikman, Mark, and Weiss, Christian. 2014.
"Polarized light ions and spectator nucleon tagging at EIC". United States. https://www.osti.gov/servlets/purl/1163952.
@article{osti_1163952,
title = {Polarized light ions and spectator nucleon tagging at EIC},
author = {Guzey, Vadim and Higinbotham, Dougas W. and Hyde, Charles and Nadel-Turonski, Pawel A. and Park, Kijun and Sargsian, Misak M. and Strikman, Mark and Weiss, Christian},
abstractNote = {The neutron's deep-inelastic structure functions provide essential information for the flavor separation of the nucleon parton densities, the nucleon spin decomposition, and precision studies of QCD phenomena in the flavor-singlet and nonsinglet sectors. Traditional inclusive measurements on nuclear targets are limited by dilution from scattering on protons, Fermi motion and binding effects, final-state interactions, and nuclear shadowing at x ll 0.1. An Electron-Ion Collider (EIC) would enable next-generation measurements of neutron structure with polarized deuteron beams and detection of forward-moving spectator protons over a wide range of recoil momenta (0 < p(R) < several 100MeV in the nucleus rest frame). The free neutron structure functions could be obtained by extrapolating the measured recoil momentum distributions to the on-shell point. The method eliminates nuclear modifications and can be applied to polarized scattering, as well as to semi-inclusive and exclusive final states. We review the prospects for neutron structure measurements with spectator tagging at EIC, the status of R&D efforts, and the accelerator and detector requirements.},
doi = {},
url = {https://www.osti.gov/biblio/1163952},
journal = {Proceedings of Science},
number = 2014,
volume = DIS,
place = {United States},
year = {Wed Oct 01 00:00:00 EDT 2014},
month = {Wed Oct 01 00:00:00 EDT 2014}
}