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:
- 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. https://doi.org/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. https://doi.org/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}
}
https://doi.org/10.1103/PhysRevAccelBeams.23.021001
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