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

Journal Article · · Physical Review Accelerators and Beams
ORCiD logo [1];  [1];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
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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.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704; AC02-98CH10886
OSTI ID:
1599496
Alternate ID(s):
OSTI ID: 1604323
Report Number(s):
BNL-213707-2020-JAAM; PRABCJ; TRN: US2104218
Journal Information:
Physical Review Accelerators and Beams, Vol. 23, Issue 2; ISSN 2469-9888
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

References (15)

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Feasibility of a polarized deuteron beam in the AGS and RHIC
  • 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 https://doi.org/10.1016/0168-9002(91)90300-F
journal August 1991
Polarized proton collider at RHIC
  • 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 https://doi.org/10.1016/S0168-9002(02)01946-0
journal March 2003
Prospects for Acceleration of Deuterons and Helions conference January 2008
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
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