Compare fsu-EC with cmu-EC
- The topology γ p -> p π+ π-()
- 40 Runs in Period 6 & 7 (982 Files) : Electron Energy = 2.478 GeV
- CL > 0.01
1. New Vertex Cut
| \ | Old | New |
| Butanol | [ -3.0 , 3.0 ] | [ -6.0 , 4.0 ] |
| Carbon | [ 5.0 , 7.5 ] | [ 4.5 , 10.0 ] |
| CH2 | [ 14.0 , 18.0 ] | [ 13.0 , 19.0 ] |
2. The Equation of FSU Energy Correction
If you wanna know how to get the following equation, click this .
- E(e) is the energy of an electron beam
In the circular polarized beam
- period 1 - period 3 : E(e) = 1.645 GeV
- period 4 - peiord 7 : E(e) = 2.478 GeV
- a0 = 0.00456797
- a1 = -0.00630536
- p0, p1, and p2 are changed in each target
| \ | p0 | p1 | p2 |
| Butanol | -0.02299 | 0.0237 | 0.0029 |
| Carbon | -0.01533 | 0.02012 | 0.0 |
| CH2 | -0.01539 | 0.02413 | 0.0 |
3. FSU EC and CMU EC in several situations
I applied the ELoss Correction and Energy Correction, but not the Momentum Correction.
(A) E(mea. photon)/2.478
- a) FSU Energy Correction
Butanol |
CH2 |
 |
 |
- b) CMU Energy Correction
Butanol |
CH2 |
 |
|
(B) E_id
- a) FSU Energy Correction
Butanol |
CH2 |
 |
 |
- b) CMU Energy Correction
Butanol |
CH2 |
 |
 |
(C) Z-Vertex
FSU Energy Correction |
CMU Energy Correction |
 |
 |
(D) φ
- a) FSU Energy Correction
Butanol |
CH2 |
 |
 |
- b) CMU Energy Correction
Butanol |
CH2 |
 |
 |
