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Phys. Rev. ST Accel. Beams 12, 031001 (2009) [15 pages]

Simulations of beam-beam and beam-wire interactions in RHIC

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Hyung J. Kim* and Tanaji Sen
Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA

Natalia P. Abreu and Wolfram Fischer
Brookhaven National Laboratory, Upton, New York 11973, USA

Received 23 December 2008; published 12 March 2009

The beam-beam interaction is one of the dominant sources of emittance growth and luminosity lifetime deterioration. A current-carrying wire has been proposed to compensate long-range beam-beam effects in the LHC and strong localized long-range beam-beam effects are experimentally investigated in the RHIC collider. Tune shift, beam transfer function, and beam loss rate are measured in dedicated experiments. In this paper, we report on simulations to study the effect of beam-wire interactions based on diffusive apertures, beam loss rates, and beam transfer function using a parallelized weak-strong beam simulation code (bbsimc). The simulation results are compared with measurements performed in RHIC during 2007 and 2008.

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© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevSTAB.12.031001
DOI:
10.1103/PhysRevSTAB.12.031001
PACS:
29.20.db, 29.27.Bd

*hjkim@fnal.gov

URL: http://www-ap.fnal.gov/~hjkim