1. 1 Status of Located Event Analysis On behalf of Nagoya Scanning Group Umut KOSE OPERA Emulsion Workshop, 22-23 January 2008, Nagoya, JAPAN

2. 2 38 Opera neutrino events  19 (EU), 19 (JP) 19 events  15 CC + 4 NC events in Japan 7 events analyzed. Event Brick#Event type Stop Plate 179264151 20122 CC PL10 180277945 33540 CC PL56 178684089 36564 NC PL38 179351516 01429 CC PL47 181543007 53486 CC PL25 182245114 40953 CC PL46 187381090 40742 CC PL54

3. 3 EventEvent type Stop Plate 1rycomment 179264151 CC PL105 e-pair, charm!! 180277945 CC PL563; 1 black 2 e-pairs 178684089 NC PL386 179351516 CC PL473 181543007 CC PL257 e-pair, Neutral 2ndry? 182245114 CC PL463; 5 black 187381090 CC PL54Single stop QE-like!!

4. 4 CC-event Brick #: 53486 Event 18154300

5. 5 Ev18154300 Brick#53486

6. 6

7. 7

8. 8

9. 9 Event 181543007 1st brick 0.98 SM Wall, side, row, cell 1 20 1 46 17 Brick N., status 1053486 0 Kalman: slopes X,Y -0.26779601 -0.381244987 K: Extrapolation 119.332855 98.674118 -521.834045 K: dist. from borders evt x,y mm class 181543007 39.484375 38.375 3 K: Coordinates in emu. frame x,y mm 39.484375 61.4248047 Linear slopes X,Y -0.265368491 -0.340315163 Linear extrap X,Y,Z 118.968155 97.4809113 - 521.834045 Linear coordinates in emu. frame x,y mm 35.8374023 49.4926758 Ev18154300 Brick#53486

10. 10 Large scanning Area (122mm x 95.5mm) And no angular selection 4 hold selection and 8 tracks sent to manual check and found 6 tracks. Found Tracks angle and position 1) (-0.116, -0.476) (33.0, 74.0) 2) (-0.171, -0.188) (31.3, 84.6 ) 3) ( 0.186, 0.057) (40.3, 94.2) 4) ( 0.608, -0.088) (45.1, 92.0) 5) ( 0.604, 0.133) (54.4, 92.6 ) 1 track isolated 6) (-0.373, 0.441) (59.7, 21.1 ) cosmic ray? Ev18154300 Brick#53486

11. 11 Ev18154300 Brick#53486

12. 12 Ev181543007 Brick#53486 Ev18154300 Brick#53486

13. 13 Ev18154300 Brick#53486 58 emulsion films have been found

14. 14 ScanBack location result Ev18154300 Brick#53486 SB location 2 times tried, in the first trial SB stopped at pl 25 in the second stopped at pl 51.

15. 15 Z-projection Ev18154300 Brick#53486 X-projection Y-projection muon NetScan Data Analysis at stopping plate 25

16. 16 8 tracks sent to manual scan (9 tracks found at 1ry) 25 -0.1293 -0.2064 36054.0 90855.3 --- 25 -0.1023 -0.4940 36069.7 90706.7 1.72 25 0.0504 0.1043 36133.5 90999.6 3.43 25 -0.2856 0.2756 35969.7 91099.9 4.66 25 -0.2047 -0.6125 36016.2 90646.5 0.95 25 0.1440 0.6340 36187.4 91272.1 2.04 25 0.0011 -0.0251 36109.0 90944.9 }-->epair *25 -0.0003 0.0174 36107.2 90950.1 }-->epair *25 0.0585 0.0980 36133.1 91002.1 23 0.4242 -0.0414 37471.3 90591.6 *found during manual scan.. Ev18154300 Brick#53486

17. 17 8 tracks have been sent to manual scan (plate 25 in lead), 9 tracks have been found at 1ry vertex 1ry vertex positons: 36119.9 90966.1 517.3 e-pair.. 36107.7 90957.6 132.0 FL = 385.6 micron, Opening angle: 0.044rad. One more neutral 2ndry at plate 23 ??? FL ~ 3100micron, parent slope: (0.430;-0.120) Ev18154300 Brick#53486

18. 18 Pl 11; 2ndry interaction with 3 black, 1shower track, shower found in CSD Edge out in pl 3 Muon track Found in CSD Exist in CSD Ev18154300 Brick#53486

19. 19 Ev18154300 Brick#53486

20. 20 Ev18154300 Brick#53486 SB first trial

21. 21 Ev18154300 Brick#53486 SB second trial

22. 22 Checking SB track and follow down track at pl2 and 1. pl2 106177 -0.1634 -0.1805 B 210085 -0.1540 -0.1806 31845.7 85522.3 M 320000 -0.1692 -0.1907 31840.7 85521.4 71136 -0.1634 -0.1298 M 320000 -0.1886 -0.1760 31670.8 85736.4 pl1 106177 -0.1634 -0.1805 M 320000 -0.1733 -0.1980 31786.3 85524.4 71136 -0.1886 -0.1760 M 320000 -0.1905 -0.1799 31613.0 85745.4 Base --> dx: 169.9 ; dy: -215.0 Up --> dx: 168.0 ; dy: -214.5 Down --> dx: 163.0 ; dy: -210.6 SB > 937581 2 125813 -0.179853 -0.167776 31681.9 85724.7 220079 110052 110027 -0.2254 -0.2368 -0.2039 -0.2063 Follow > 937601 2 78441 -0.166576 -0.186486 31851 85514.5 180051 80011 100040 -0.1648 - 0.2444 -0.1951 -0.2328 SB > 778196 1 71136 -0.1827 -0.1697 31628.4 85694.9 210099 110064 100035 -0.1831 -0.2505 - 0.2083 -0.2318 Ev18154300 Brick#53486

23. 23 Checking plate 51 again The Scanback Track penetrating Ev18154300 Brick#53486 Cosmic !!!

24. 24 CC-event Brick #: 20122 Event 17926415

25. 25 23.2 GeV/c 2470 tot pe 654.7 mu pe Ev179264151 Brick#20122

26. 26 Ev179264151 Brick#20122

27. 27 PWall4>83% Ev179264151 Brick#20122

28. 28 RS, Wall 4, Tray 17 Cell 25 prob= 0.83 RS, Wall 5 Tray 17 Cell25 prob= 0.17 Kalman slopes: -0.111 0.111 Linearfit slopes: -0.109 0.105 Emu coordinates: X 4.3018 Y 8.29335 Ev179264151 Brick#20122

29. 29 CS scan and SB Scanning Area (40mm x32mm) and (122mm x 95.5mm) CS fog density: 6.1+-0.4 (ESS measurement) 4 hold selection Prediction angle: (-0.109, 0.105 ) Predicted film position: (36.3, 83.0) mm Found Track angle and position Difference from prediction angle: -0.006, -0.001 Difference from prediction positions: (17.3, -2.1) mm. Scan location  Stopping at pl 10 Ev179264151 Brick#20122

30. 30 Ev179264151 Brick#20122 X-projection NetScan data analysis

31. 31 Ev179264151 Brick#20122 Y-projection Z-projection muon

32. 32 Manual scan results: 5 tracks found @ 1ry vertex 0.2181 0.1099 54505.6 78946.6 0.65 0.0492 0.0018 54396.4 78878.7 6.96 -0.1088 0.1143 54285.8 78948.9 muon track 0.4429 -0.0049 54650.5 78870.3 0.19 0.1193 -0.0594 54445.5 78861.4 22.58 !!!!!!! Charm candidate!!! IP:22.58micron, Electron pair found @ pl3 One interaction (6black+some showers) have been seen near e-pair Ev179264151 Brick#20122 Kinematical Analysis of the event going on..

33. 33 1ry vertex positions: –X: 54368.4 Y: 78875.3 depth: 672.1 in the lead plate. One track changing the slope at pl4 –at pl5 slope--> 0.4197 0.0096 57580.1 79012.7 –at pl4 slope--> 0.4297 0.0621 58107.0 79044.1 –Kink angle: 0.0534439 e-pair at pl 3 –e-pair position: X: 55204.2 Y: 79577.4 depth: 77.5 –opening angle: 0.034141 –FL: 9686.3 micron –1) 0.0828 0.0635 55227.2 79595.0 found at CSD –2) 0.0947 0.0955 55229.9 79604.1 --> scatter at pl2 0.1152 0.0967 55336.6 79686.2 --> not found at pl1 Ev179264151 Brick#20122

34. 34 All tracks followed down and search them at CSD, 5 out of 6 have been found. Ev179264151 Brick#20122 e-pair at pl3

35. 35 Ev179264151 Brick#20122

36. 36 CC-event Brick #: 4095329 Event 18224511

37. 37 x-projection Ev18224511 Brick#40953

38. 38 Vertex manually confirmed (plate 46 in lead) 3 shower and 5 black tracks have been found. Vertex positons: X: 114205.2 Y: 94520.9 Z: 14086.8 (148micron) -0.1269 -0.1899 -- SBtrack(  ) -0.4359 -0.0014 1.02 -0.0315 -0.0014 0.33 Ev18224511 Brick#40953

39. 39 CC-event Brick #: 1429 Event 179351351

40. 40 X-projection Ev17935151 Brick#1429

41. 41 Y-projection Z-projection Ev17935151 Brick#1429 1ry tracks: -0.1242 -0.3170 6.66 0.2435 0.0116 0.79 -0.0637 -0.1381 -- muon 1ry vertex positions: 59665.5 21113.8 664.1

42. 42 NC-event Brick #: 36564 Event 17868408

43. 43 X-projection Ev17868408 Brick#36564

44. 44 Y-projection Z-projection Ev17868408 Brick#36564

45. 45 Tracks at 1ry vertex: -0.0500 0.0512 0.2196 0.0386 -0.3484 0.0436 0.0854 0.1798 0.2832 -0.2448 0.5372 -0.1691

46. 46 CC-event Brick #: 33540 Event 18027794 Kitagawa San will present that event..

47. 47 Event 180277945 CC Mu+ 8.7 GeV/c HPT SM1 Not workin g Ev18027794 Brick#33540

48. 48 Ev18027794 Brick#33540

49. 49 Tot P.E. 1199 Muon P.E. 582 1 brick proposed: (wall,cell,tray,iside) 9 13 29 1 prob= 0.98 Muon slopes Kalman 0.0282 0.215 Muon slopes linear fit 0.0384 0.220 Extrap: 172.79364 -80.7020493 -669.255798 +- 0.482326657 0.472024381 Coordinates in emulsion frame: X 5.45781 Y 6.04764 Ev18027794 Brick#33540

50. 50 Ev18027794 Brick#33540

51. 51 CS scan an SB results Scanning Area (40mm x40mm) and (122mm x 95.5mm) 4 hold selection Prediction angle: 0.038, 0.220 Found Track angle and position Difference from prediction angle: -0.025,0.011 Difference from prediction positions: (3.1, -1.4) mm. Scan location  Stopping at pl 56 Ev18027794 Brick#33540

52. 52 Track found on CSd (Blue thick line) Ev18027794 Brick#33540

53. 53 Track found @vtx pl56(Blue thick line) Ev18027794 Brick#33540

54. 54 Y-projection Ev18027794 Brick#33540 NetScan data analysis

55. 55 X-projection Z-projection Ev18027794 Brick#33540 muon