1. Update on di-hadron modulations
Anselm Vossen 5/3/2013

2. Modulations PhiR_1 + PhiR2 PhiR_1- PhiR2 (~handedness related)
Approach: 2D fit in PhiR1, PhiR2 with given modulations
Data: mc on Res Ex55
Use Pi+/Pi-, Pi+/Pi0, Pi0,Pi- combinations
Pi0 in signal and background region (>pi0mass)
Bin in m,z, labTheta, qT, transverse polarisation projection
Also compute asymmetries with counts divided by random charge mixed counts (doesn’t work for G1T)

3. Ang resolution – lab theta
Acceptance effects:
Delta(Phi1-Phi2)
Use
Delta(Sin\theta)

4. Vs Theta_Lab
Iff
G1T
Handedness

5. Vs Qt
Iff
G1T
Handedness

6. Vs M
Iff
G1T
Handedness

7. Vs Z
Iff
G1T
Handedness

8. Doesn’t go away using ratios (z,z bin)
Handedness
Minus Mix
Raw

9. Cut On Lab Theta 1.2-1-6 and Qt<4.7 GeV, Vs M:
Iff
G1T
Handedness

10. Vs Z
Iff
G1T
Handedness

11. And again, subtracting charge mix doesn’t help:
Handedness, minus Mix vs Z
Handedness, minus Mix vs M