The asymmetry plot for the observable, Pzc with the scaling factor

Topology : γ P -> P π+ (π-), Energy Bin : 1100 - 1200 GeV, Combination 2 & 3 { period 2 (377 files with B00 and B01) period 3 (806 files with B00 and B01) }
Topology : γ P -> π+ π- (P), Energy Bin : 1100 - 1200 GeV, Combination 2 & 3 { period 2 (377 files with B00 and B01) period 3 (806 files with B00 and B01) }

Topology : γ P -> P π+ (π-), EBin : 1100 - 1200 GeV, ABin : 0.6 - 0.7, PBin : -0.4π - -0.2π
The butanol target	The carbon target
Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)	Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)

Topology : γ P -> π+ π- (P), EBin : 1100 - 1200 GeV, ABin : 0.6 - 0.7, PBin : -0.4π - -0.2π
The butanol target	The carbon target
Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)	Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)

Topology : γ P -> P π+ (π-), EBin : 1100 - 1200 GeV, ABin : 0.6 - 0.7, PBin : -0.4π - -0.2π
The butanol target	The carbon target
Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)	Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)

Topology : γ P -> π+ π- (P), EBin : 1100 - 1200 GeV, ABin : 0.6 - 0.7, PBin : -0.4π - -0.2π
The butanol target	The carbon target
Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)	Period[02]BPol[00](<-<=) Period[02]BPol[01](-><=) Period[03]BPol[00](<-=>) Period[03]BPol[01](->=>)

Topology : γ P -> P π+ (π-), Combination 2 & 3, Energy Bin : 1100 - 1200 GeV
period 2 (242 files with B00)	period 2 (377 files with B00 and B01)
period 3 (242 files with B00)	period 3 (806 files with B00 and B01)
Topology : γ P -> π+ π- (P), Combination 2 & 3, Energy Bin : 1100 - 1200 GeV

The scaling factor is the ratio of the missing mass of the butanol to the missing mass of the carbon in the background part. We decide the background part some range under the peak. In my research, the fitting range is [-0.2,0] in situation 1, 2, 4, and 5. [0.6,0.8] in situation 3 and 6. I can remove the effect of the carbon part from the butanol target using the scaling factor.

The scaling factor, S

Topology The period 2 The period 3 γ P -> P π+ (π-) 5.446 5.43 γ P -> P π- (π+) 5.069 4.982 γ P -> π- π+ (P) 5.556 5.356 γ P -> P π- π+ () 6.264 6.186 γ P -> P (π0 or η) 4.949 4.889 γ P -> π+ (N) 5.519 5.457

Topology : γ P -> P π+ (π-), Combination 2 & 3, Energy Bin : 1100 - 1200 GeV
Topology : γ P -> π+ π- (P), Combination 2 & 3, Energy Bin : 1100 - 1200 GeV

After adding the scaling factor and the carbon component to the asymmetry plot together, the good shape in the asymmetry plot is disappeared. I checked the difference between the 3-Half cross section of the carbon target and the 1-Half cross section of the carbon target like the following:

Combination 2 & 3, Energy Bin : 1100 - 1200 GeV, Theta Bin : 0.6 - 0.7
Topology : γ P -> P π+ (π-)	Topology : γ P -> π+ π- (P)

Basically, they should have the values of around zero, however, they have a variety of values, not zero.