ACCEPTANCE (epi0)

Comparison of acceptance extraction methods:
matching angle vs background subtraction

PART1
1D Comparison
Fig.1 Generated pi0 in pT2 bins

Distributions in z bins

Fig.1a LEFT panel - all Reconstructed pi0 in a given pT2 bin,
RIGHT panel - Reconstructed pi0 within 3 degrees of matching angle


Distributions in zbins Rec with Background and Rec with Matching

Fig.2Acc in pT2(left)& in z(right) bins for z>0.2 for DEUTERIUM extracted using:
ORANGE points - background subtraction; PURPLE points - matching angle

Fig.3Acc in pT2(left)& in z(right) bins for z>0.2 for IRON extracted using:
ORANGE points - background subtraction; PURPLE points - matching angle

NB#1 Iron plots in pT2 bins for z>0.2: Generated pi0 , Reconstractued with matching, Reconstracted with mbackground
NB#2 Iron plots in z bins: Generated pi0 , Reconstractued with matching, Reconstracted with mbackground


Fig.5 Ratio of Acceptances for Fe and D



PART2
2D Comparison: z, pT2 in Q2 bins
Fig.6 Generated pi0 in Q2(vertical) and pT2bins(horizontal) for DEUTERIUM :

Fig.6a Reconstractued pi0 in Q2(vertical)& pT2bins(horizontal) using matching

Fig.6b Reconstractued pi0 in Q2 & pT2bins, background subtracted.


Fig.7Acceptance vs pT2 in Q2 bins for DEUTERIUM

Fig.7aAcceptance vs pT2 in Q2 bins for IRON


Fig.8Acceptance vs Z in Q2 bins for DEUTERIUM

Fig.8aAcceptance vs Z in Q2 bins for IRON

Fig.9 Ratio of Acc(Fe)/Acc(D) vs pT2 and z




PART3
Electron acceptance

Fig.11 Electron acceptance vs Nu plotted in Q2 bins:

Fig.11a Electron acceptance vs Q2 plotted in Nu bins:

Fig.11b Electron acceptance vs Q2(left) andvs Nu(right):






ACCEPTANCE (for pi0 only !!!)
Accpetance extracted for pi0, i.e pi0 is accounted is generated electron is reconstructed.

Fig.20 Acc in pT2 bins(left: z>0.2; middle: z>0.4) and in z(right) bins for DEUTERIUM
extracted using: ORANGE points - background subtraction; PURPLE points - matching angle


Fig.21 Acc in pT2 bins(left) and in z(right) bins for IRON extracted using:
ORANGE points - background subtraction; PURPLE points - matching angle

Fig.22Acceptance vs pT2 in Q2 bins for DEUTERIUM .

Fig.23Acceptance vs Z in Q2 bins for DEUTERIUM .







OLD acceptance tests. Magnitude may be incorrect.
Databases in use:
- BOS to GSIM 'calib.RunIndex'
- GSIM to GPP 'calib_user.RunindexLorenzo'
- GPP to user_ana 'calib.RunIndex'




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