skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Polarization preservation of polarized deuteron beams in the electron ion collider at Brookhaven National Laboratory

Abstract

The physics program at the future electron ion collider (EIC) calls for polarized neutron beams at high energies. The best neutron carriers are 3He nuclei and deuterons. Both neutron carriers are expected to be utilized by the spin physics program in the EIC. Owing to the small magnetic moment anomaly of a deuteron particle, significantly higher magnetic fields are required for spin rotation, so that full Siberian snakes are not feasible. However, the resonance strengths are weak, and the number of resonances is small. It is possible to deal with individual resonances using conventional methods such as a betatron tune jump and vertical ac dipole for intrinsic depolarizing resonances, and a weak partial snake for imperfection resonances. This study employed a realistic magnet ramp rate and parameters (both transverse and longitudinal emittances, as well as realistic lattices) to show that it is possible to accelerate polarized deuterons beyond 100 GeV/n. This paper summarizes the details of the feasibility of a polarized deuteron beam for the future EIC at Brookhaven National Laboratory.

Authors:
ORCiD logo; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1599496
Alternate Identifier(s):
OSTI ID: 1604323
Report Number(s):
BNL-213707-2020-JAAM
Journal ID: ISSN 2469-9888; PRABCJ; 021001
Grant/Contract Number:  
SC0012704; AC02-98CH10886
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 23 Journal Issue: 2; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Huang, H., Méot, F., Ptitsyn, V., Ranjbar, V., and Roser, T. Polarization preservation of polarized deuteron beams in the electron ion collider at Brookhaven National Laboratory. United States: N. p., 2020. Web. doi:10.1103/PhysRevAccelBeams.23.021001.
Huang, H., Méot, F., Ptitsyn, V., Ranjbar, V., & Roser, T. Polarization preservation of polarized deuteron beams in the electron ion collider at Brookhaven National Laboratory. United States. doi:10.1103/PhysRevAccelBeams.23.021001.
Huang, H., Méot, F., Ptitsyn, V., Ranjbar, V., and Roser, T. Tue . "Polarization preservation of polarized deuteron beams in the electron ion collider at Brookhaven National Laboratory". United States. doi:10.1103/PhysRevAccelBeams.23.021001.
@article{osti_1599496,
title = {Polarization preservation of polarized deuteron beams in the electron ion collider at Brookhaven National Laboratory},
author = {Huang, H. and Méot, F. and Ptitsyn, V. and Ranjbar, V. and Roser, T.},
abstractNote = {The physics program at the future electron ion collider (EIC) calls for polarized neutron beams at high energies. The best neutron carriers are 3He nuclei and deuterons. Both neutron carriers are expected to be utilized by the spin physics program in the EIC. Owing to the small magnetic moment anomaly of a deuteron particle, significantly higher magnetic fields are required for spin rotation, so that full Siberian snakes are not feasible. However, the resonance strengths are weak, and the number of resonances is small. It is possible to deal with individual resonances using conventional methods such as a betatron tune jump and vertical ac dipole for intrinsic depolarizing resonances, and a weak partial snake for imperfection resonances. This study employed a realistic magnet ramp rate and parameters (both transverse and longitudinal emittances, as well as realistic lattices) to show that it is possible to accelerate polarized deuterons beyond 100 GeV/n. This paper summarizes the details of the feasibility of a polarized deuteron beam for the future EIC at Brookhaven National Laboratory.},
doi = {10.1103/PhysRevAccelBeams.23.021001},
journal = {Physical Review Accelerators and Beams},
number = 2,
volume = 23,
place = {United States},
year = {2020},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevAccelBeams.23.021001

Save / Share:

Works referenced in this record:

Exploration of horizontal intrinsic spin resonances with two partial Siberian snakes
journal, April 2007


Polarized beams in high energy storage rings
journal, November 1984


Overcoming horizontal depolarizing resonances with multiple tune jumps
journal, August 2014

  • Huang, H.; Ahrens, L. A.; Bai, M.
  • Physical Review Special Topics - Accelerators and Beams, Vol. 17, Issue 8
  • DOI: 10.1103/PhysRevSTAB.17.081001

Overcoming Depolarizing Resonances with Dual Helical Partial Siberian Snakes
journal, October 2007


Depolarisation d'un faisceau de protons polarises dans un synchrotron
journal, June 1960


Overlapping spin synchrotron sideband resonances
journal, July 1996


Feasibility of a polarized deuteron beam in the AGS and RHIC
journal, August 1991

  • Lee, S. Y.; Ratner, L. G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 306, Issue 1-2
  • DOI: 10.1016/0168-9002(91)90300-F

Polarized proton collider at RHIC
journal, March 2003

  • Alekseev, I.; Allgower, C.; Bai, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 2-3
  • DOI: 10.1016/S0168-9002(02)01946-0

Prospects for Acceleration of Deuterons and Helions
conference, January 2008

  • MacKay, W. W.; Kponou, Ahovi; Makdisi, Yousef
  • POLARIZED ION SOURCES, TARGETS AND POLARIMETRY, AIP Conference Proceedings
  • DOI: 10.1063/1.2888087

Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all
journal, September 2016


Acceleration of polarized protons to 22 GeV/ c and the measurement of spin-spin effects in p + p →p+ p
journal, January 1989


Overcoming an intrinsic depolarizing resonance with a partial Siberian snake
journal, July 2004


Preservation of Proton Polarization by a Partial Siberian Snake
journal, November 1994


Overcoming Intrinsic Spin Resonances with an rf Dipole
journal, May 1998