Observation and simulation of beam-beam induced emittance growth in RHIC

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In the recent years the peak luminosity of the RHIC polarized proton run has been improved. However, as a consequence, the luminosity lifetime is reduced. The beam emittance growth during the beam storage is a main contributor to the luminosity lifetime reduction, and it seems to be caused mainly by the beam-beam effect during collision. A simulation study of the emittance growth is performed with RHIC machine parameters using the LIFETRAC code [1]. The initial results of this study were reported in an earlier paper [2]. We present, in this paper, an in depth investigation of the emittance growth for ... continued below

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Beebe-Wang,J. & Zhang, S. Y. May 4, 2009.

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In the recent years the peak luminosity of the RHIC polarized proton run has been improved. However, as a consequence, the luminosity lifetime is reduced. The beam emittance growth during the beam storage is a main contributor to the luminosity lifetime reduction, and it seems to be caused mainly by the beam-beam effect during collision. A simulation study of the emittance growth is performed with RHIC machine parameters using the LIFETRAC code [1]. The initial results of this study were reported in an earlier paper [2]. We present, in this paper, an in depth investigation of the emittance growth for a range of beam-beam parameters and bunch lengths. The simulation results are also compared to the available data from experimental measurements.

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  • Particle Accelerator Conference; Vancouver, B.C., Canada; 20090504 through 20090508

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  • Report No.: BNL--81793-2009-CP
  • Grant Number: DE-AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 952524
  • Archival Resource Key: ark:/67531/metadc930523

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  • May 4, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 8:40 p.m.

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Beebe-Wang,J. & Zhang, S. Y. Observation and simulation of beam-beam induced emittance growth in RHIC, article, May 4, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc930523/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.