A Closer Look at the July-August12 TestBeam Data (Angular Resolution, etc.)

1. A Closer Look at the July-August12 TestBeam Data(Angular Resolution, etc.) T. Alexopoulos, G. Iakovidis, S. Leontsinis, K. Ntekas

2. TEST BEAM SETUP Jul-Aug2012 (27.07.2012-10.08.2012) Jura 1480 Freiburg frame 1250 TOP VIEW veto Sci T1 T7 T3 T5 T5 T3 T7 T1 XY 205 42 727 Beam profile wire chamber x s1 5 s256 s640 z 26 26 26 -θ 15 y finger Sci (SA) s64 170 5 s256 s1 s1 Si1 Si3 SC Si6 SB (π-,-80 GeV/c) Y-inverted T8 T2 T6 T4 T4 T6 T2 T8 SB Tmm6 SD (π-,-120GeV/c after Mon 30.07) Saleve L1 16 Tmm5 SIDE VIEW y s1 s640 s1 s1 26 26 26 z x Tmm5 XY 120 x s640 XY XY Tmm2 Tmm2 s640 s1 Si1 Si6 Si3 s64 50 (π-,-80GeV/c) Y-inverted XY XY XY XY X X X X X X X X X X X X X X X X (π-,-120GeV/c after Mon 30.07) Tmm6 1155 L1 New movable table Tmm3 Tmm3 Info: Ref MM: Tmm2-6, p=0.250mm, sw=0.150mm, gp=5mm Info: Test MM: T1-8, p=0.4mm, sw=0.3mm, gp=5mm

4. APV Elx

5. Normal Residuals, All Points after jitter correction T1 T3 T5 T7 T2 T4 T6 T8 θ z1 z2 • Use all the points of odd or even planes; form two type of tracks (odd & even) • Make a correction by moving the even points to lineup with the odd points • Calculate the new angle of the track • Calculate residuals

6. 10o 20o z1-z2 40o 30o 21 ns

7. σ=0.22mrad σ=0.013o (θrec-10x0.0175 rad/degree) rad σ=0.24mrad σ=0.014o (θrec-20x0.0175 rad/degree) rad

8. σ=0.012o σ=0.23mrad (θrec-30x0.0175 rad/degree) rad σ=0.013o σ=0.22mrad (θrec-40x0.0175 rad/degree) rad

11. 10o 20o σ=0.103mm σ=0.134mm Residuals of T56 after you form a track out of T123478 30o 40o σ=0.127mm σ=0.155mm

12. Summarizing the normal residuals in the case of “All Points” in the Fit (T123478) σt=σd/(vdsinθ) Drift velocity vd=47μm/ns θin θrec σtvd σd x Normal Residuals All Points Info

13. T5 T6 30o 40o

14. Summarizing the normal residuals in the case of “All Points” in the Fit (T123478) σt=σd/(vdsinθ) Drift velocity vd=47μm/ns θin θrec σtvd σd x Normal Residuals All Points Info

15. Backup slides; before we get to the final jitter correction

16. 10o 20o σ=0.382mm σ=0.276mm Single hit residuals 30o 40o σ=0.307mm σ=0.245mm

17. Angular Resolution T1 T3 T5 T7 T2 T4 T6 T8 θ Odd MM earliest-time strip Even MM earliest-time strip All MM earliest-time strip Odd MM Average strip Even MM Average strip All MM Average strip Odd MM “track info” Even MM “track info” All MM “track info” Odd MM cluster info Even MM cluster info All MM cluster info x x si sf

19. final σ=(σin*σex)1/2 10o mm x x T1 T2 x x T4 T3 T5 T6 x x T7 T8 Normal Residuals All MM Track Info mm

20. final σ=(σin*σex)1/2 20o mm x x T1 T2 mm x x T3 T4 T5 T6 x x T8 T7 Normal Residuals All MM Track Info

21. final σ=(σin*σex)1/2 30o mm x x T1 T2 mm x x T3 T4 T5 T6 x x T8 T7 Normal Residuals All MM Track Info

22. final σ=(σin*σex)1/2 40o mm x x T1 T2 mm x x T3 T4 T5 T6 x x T8 T7 Normal Residuals All MM Track Info

23. Summarizing normal residuals in the case of “Track Info” σt=σd/(vdsinθ) Drift velocity vd=47μm/ns θin θrec σtvd σd x Normal Residuals All MM “Track Info”

24. All MM “All Points” T1 T3 T5 T7 T2 T4 T6 T8 θ • Use all the points of planes T1-8 to a single fit • Calculate the angle of the track • Calculate residuals

25. Typical events 10o 20o mm mm T1-2 T3-4 T5-6 T7-8 T1-2 T3-4 T5-6 T7-8 30o 40o mm mm mm mm

26. 10o 20o 30o 40o

27. σ=0.015o σ=0.26mrad (θrec-10x0.0175 rad/degree) rad σ=0.33mrad σ=0.019o (θrec-20x0.0175 rad/degree) rad

28. σ=0.28mrad σ=0.016o (θrec-30x0.0175 rad/degree) rad σ=0.23mrad σ=0.016o (θrec-40x0.0175 rad/degree) rad

31. Normal Residuals for all points in the fit σ=0.290mm σ=0.360mm σ=0.313mm σ=0.403mm

32. Normal Residuals 40o Normal Residuals 40o σ=0.399mm σ=0.406mm • Calculate residuals by using points of the odd MM • Calculate residuals by using points of the even MM • Calculate residuals by using points of all MM • they are consistent with each other σ=0.403mm

33. Summarizing the normal residuals in the case of “All Points” in the Fit σt=σd/(vdsinθ) Drift velocity vd=47μm/ns θin θrec σtvd σd x Normal Residuals All Points Info