Simulation of Statistical Fluctuations in the Spin Precession Measurements at RHIC

Poblaguev, A. A.¹ 

[1] Brookhaven National Lab. (BNL), Upton, NY (United States). Collider-Accelerator Dept.

关键词: BROOKHAVEN RHIC;    COMPUTERIZED SIMULATION;    SPIN;    FLUCTUATIONS;    PRECESSION;    MONTE CARLO METHOD;    AMPLITUDES;    DATA COVARIANCES;    POLARIZED BEAMS;    SPIN ORIENTATION Relativistic Heavy Ion Collider;   

DOI  :  10.2172/1127064
RP-ID  :  BNL--104379-2014-IR
RP-ID  :  BNL--C-A/AP/506
PID  :  OSTI ID: 1127064
Others  :  R&D Project: KBCH139
Others  :  18092
Others  :  Other: KB0202011
Others  :  TRN: US1500098

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Measurements of the driven spin coherent precession S_x(t)=S_x⁽⁰⁾ - S_x⁽¹⁾ sin(??t+??₀) were initiated in RHIC Run13. The expected value of the precession amplitude S_x⁽¹⁾ ~ 2 x 10^-4 is about the statistical error in a single measurement and data fit gives a biased estimate of the S_x⁽¹⁾. For a proper statistical interpretation of the results of the several measurements, statistical fluctuations were studied using Monte-Carlo simulation. Preliminary results of the spin precession measurements in RHIC Run13 are presented.