RHIC FY15 pp Run RHIC and AGS polarization analysis

Technical Report · Sat Feb 20 00:00:00 EST 2016

DOI:https://doi.org/10.2172/1245379· OSTI ID:1245379

Huang, H. ^[1]; Adams, P. ^[1]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)

The polarization information is important for the spin physics program in Relativistic Heavy Ion Collider (RHIC). There are discrepancies between AGS and RHIC polarization measurements. First, the face value of AGS polarization is higher than RHIC ones in general. Second, the measured polarization profile (described by the profile ratio R) is stronger in AGS than in RHIC. This note analyzes the polarization data from FY15 pp run period. The results show that the differences between AGS and RHIC polarization measurements are reasonable, but the R value difference is puzzling. The difference between blue and yellow ring is worth of spin simulation to explain.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: SC00112704
• OSTI ID: 1245379
• Report Number(s): BNL-111891-2016-FORE; R&D Project: KBCH139; KB0202011; TRN: US1601185
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BROOKHAVEN AGS
BROOKHAVEN RHIC
DATA
SPIN ORIENTATION
PROTON BEAMS
POLARIZD BEAMS
SIMULATION
ERRORS
Relativistic Heavy Ion Collider