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d+Au Ridge: Fit Gaus for Yields

Updated on Sat, 2015-02-14 11:41. Originally created by yili on 2015-02-08 20:37.

This page is to support http://www.star.bnl.gov/protected/bulkcorr/yili/dAuRidge/dAuridgepaper.html

Fit Δφ distribution will two Gaussian + pedestal and the Gaussian area will be the near-side or away-side yields:

Fit function:
Ped + A_ns exp(-(Δφ/Sig_ns)^2/2) + A_as exp(-((Δφ-π)/Sig_as)^2/2)

The integrated yields will be

A_ns * Sig_ns * sqrt(2 π),  A_as * Sig_as * sqrt(2 π)

for near side and away side.

Fit for each Δφ

Fit pedestal vs ZYAM:

-4 0.1747+-0.0004 0.1743+-0.0005-0.0002+0.0004
-3.25 0.1766+-0.0005 0.1767+-0.0006+0.00003+0.0005
-2.5 0.1810+-0.0005 0.1810+-0.0006-0.0001+0.0002
-1.6 0.3052+-0.0015 0.303+-0.002-0.003+0.003
-1.2 0.3051+-0.0011 0.3063+-0.0013-0.0012+0.003
-0.85 0.3076+-0.0010 0.3097+-0.0012-0.0010+0.0015
-0.55 0.3068+-0.0010 0.3107+-0.0011-0.002+0.003
-0.2 0.3137+-0.0010 0.3161+-0.0008-0.0009+0.0007
0.2 0.3132+-0.0010 0.3157+-0.0008-0.0009+0.0003
0.55 0.3074+-0.0010 0.3112+-0.0011-0.002+0.002
0.85 0.3074+-0.0010 0.3089+-0.0012-0.0017+0.0009
1.2 0.3060+-0.002 0.3070+-0.0013-0.0010+0.003
1.6 0.3049+-0.0016 0.3032+-0.002-0.002+0.0019
2.5 0.0444+-0.0003 0.04387+-0.0003-0.00013+0.0002
3.25 0.0444+-0.0003 0.04350+-0.0003-0.00017+0.0004
4 0.04356+-0.00013 0.04343+-0.0003-0.00009+0.0003
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