1. Update: Run1 vs Run2 CC inc & First look at Water-out/Water-in Erez Reinherz-Aronis and Rajarshi Das (w/ Walter Toki) May 9, 2011 1

2. Outlook Samples and POTs Bunch structure Run1 vs Run2  Run 1: Data vs MCp4  Run 2: Data vs MCp4  MCp4: Run1 vs Run2  Data: Run1vs Run2 Water-out/Water-in  Data: Ratio Water-out/Water-in vs expectation 2

3. (from files header) TotalDQMCp4 Run1 water3.09x10 19 2.99x10 19 5.56x10 20 Run2 water6.98x10 19 4.36x10 19 6.13x10 20 Sum1.00x10 20 7.35x10 19 11.7x10 20 Samples and POTs 3 DQ sample were used CC Inclusive Selection:  Highest momentum negative charge track in a bunch  Begins in the P0D  (no TPC pulls cut)

4. Bunch timing 4 Run1: Run 31 → 34 Run 36 Run2: Run 37→38 Run2 has Double-Triple bunch structure 1 st = Run36; 2 nd, 3 rd = Run37/8 Run 2 Run 1

5. Run1 vs Run2 Run 1: Data vs MCp4 Run 2: Data vs MCp4 MCp4: Run1 vs Run2 Data: Run1vs Run2 5

6. Run1 Data vs MCp4 CC inc - X, Y, Cosθ, φ 6 Normalized by POT

7. Run1 Data vs MCp4 Z, Neg Trk Momentum 7 Normalized by POT Start position of Highest momentum Neg. Trk in the P0D The dashed lines represent the water-target limits

8. Run2 Data vs MCp4 CC inc - X, Y, Cosθ, φ 8 Normalized by POT

9. Run2 Data vs MCp4 Z, Neg Trk Momentum 9 Normalized by POT Data/MCp4 = 8273/8521 = 0.97±0.02

10. MCp4 Run1 vs Run2 CC inc - X, Y, Cosθ, φ 10 Run1 water Run2 water Normalized by POT

11. Mcp4 Run1 vs Run2 Z, Neg Trk Momentum 11 Normalized by POT Run1/Run2 = 111955/108661 = 1.030±0.004 usEcalusWTcWTcEcal Run1/Run20.9981.0131.0271.064 Stat. Error0.0150.0080.0060.009

12. Data Run1 vs Run2 CC inc - X, Y, Cosθ, φ 12 Run1 water Run2 water Normalized by POT

13. Data Run1 vs Run2 Z, Neg Trk Momentum 13 Normalized by POT Run1/Run2 = 6062/5673 = 1.07±0.02 usEcalusWTcWTcEcal Run1/Run20.991.08 1.05 Stat. Error0.070.040.030.04

14. Z distribution checks: XY 14 X Beam position and direction Run1 water Run2 water Normalized by POT

15. Water-out/Water-in Data ratio vs expectation 15

16. (from files header) TotalDQ Run1 water3.09x10 19 2.99x10 19 Run2 water6.98x10 19 4.36x10 19 Sum1.00x10 20 7.35x10 19 Run2 air1.79x10 19 1.77x10 19 Samples and POTs 16 DQ sample were used

17. Data CC inc: X, Y, Cosθ, φ 17 Run1 Run2 water Run2 air Normalized by POT

18. Data CC inc: Neg Trk Momentum 18 Run1 Run2 water Run2 air Normalized by POT Note: Run2 air is reconstructed as water No TPC pull used

19. Z position distributions 19 Start position of Highest momentum Neg. Trk in the P0D The dashed lines represent the water-target limits Run13588 Run2 water3358 Run2 air2573 Run1/Run2 = 1.07±0.02

20. Water-out/Water-in ratio 20 Water-target measured ration 0.70±0.02 Expected ration from material list: 0.68 Dashed lines are the water-target limits 0.94±0.090.70±0.020.94±0.05

21. Summary Run1 vs Run 2:  MCp4 Run1/Run2 ~3% higher  Data Run1/Run2 ~7% higher  Maybe there is some Z difference (within limit stat.) Water-out/Water-in ratio measured 70 ± 2 % (expect 68 %) Future plans:  Data/MC ratio vs P0Dules  MCp4 – study TPC pulls 21

22. Update: Run1 vs Run2 CC inc & First look at Water-out/Water-in Erez Reinherz-Aronis and Rajarshi Das (w/ Walter Toki) May 9, 2011 22

23. Backup (General) ND280 Fiducial -1060 < X < 1008 [mm] -1085 < Y < 1110 [mm] -3190 < Z < 5000 [mm] P0D Fiducial -1038 < X < 995 [mm] -1060 < Y < 1100 [mm] -3190 < Z < -980 [mm] 23