Title :
Results from luminosity scans during the RHIC 2000 run
Author :
Drees, A. ; Xu, Zhangbu
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
During the year 2000 run a total of eight beam scans (Vernier Scans) were performed at various interaction points (IP) at RHIC. During a Vernier Scan the experimental collision rates are recorded while the beams are stepwise scanned across each other. Vernier Scans yield transverse beam sizes as well as maximum luminosity and thus the absolute cross section, which with the limited data from the 2000 run we measured to be σ = 8.9 ± 0.3 barn at √sNN = 130 GeV. Also, Vernier Scans permit performance studies of the beam orbit control and local coupling
Keywords :
colliding beam accelerators; ion accelerators; particle beam diagnostics; storage rings; RHIC; Vernier Scans; absolute cross section; beam orbit control; beam scans; collision rates; interaction points; local coupling; luminosity scans; transverse beam size; Colliding beam devices; Extraterrestrial measurements; Laboratories; Magnets; Monitoring; Neutrons; Nuclear measurements; Optical coupling; Size measurement; US Department of Energy;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988024
