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Status of Located Event Analysis

Status of Located Event Analysis. Umut KOSE. On behalf of Nagoya Scanning Group. OPERA Emulsion Workshop, 22-23 January 2008, Nagoya, JAPAN. 38 Opera neutrino events  19 (EU), 19 (JP) 19 events 15 CC + 4 NC events in Japan 7 events analyzed. CC-event Brick #: 53486 Event 18154300.

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Status of Located Event Analysis

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

  2. 38 Opera neutrino events  19 (EU), 19 (JP) • 19 events 15 CC + 4 NC events in Japan • 7 events analyzed.

  3. CC-eventBrick #: 53486 Event 18154300

  4. Ev18154300 Brick#53486

  5. Ev18154300 Brick#53486

  6. Ev18154300 Brick#53486

  7. Ev18154300 Brick#53486

  8. Ev18154300 Brick#53486 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

  9. Ev18154300 Brick#53486 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?

  10. Ev18154300 Brick#53486

  11. Ev18154300 Brick#53486 Ev181543007 Brick#53486

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

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

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

  15. Ev18154300 Brick#53486 • 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..

  16. Ev18154300 Brick#53486 • 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)

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

  18. Ev18154300 Brick#53486

  19. Ev18154300 Brick#53486 SB first trial

  20. Ev18154300 Brick#53486 SB second trial

  21. Ev18154300 Brick#53486 Base --> dx: 169.9 ; dy: -215.0 Up --> dx: 168.0 ; dy: -214.5 Down --> dx: 163.0 ; dy: -210.6 • 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 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

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

  23. CC-eventBrick #: 20122Event 17926415

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

  25. Ev179264151 Brick#20122

  26. Ev179264151 Brick#20122 PWall4>83%

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

  28. Ev179264151 Brick#20122 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

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

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

  31. Ev179264151 Brick#20122 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 Kinematical Analysis of the event going on..

  32. Ev179264151 Brick#20122 • 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

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

  34. Ev179264151 Brick#20122

  35. CC-eventBrick #: 4095329Event 18224511

  36. Ev18224511 Brick#40953 x-projection

  37. Ev18224511 Brick#40953 • 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

  38. CC-eventBrick #: 1429Event 179351351

  39. Ev17935151 Brick#1429 X-projection

  40. Ev17935151 Brick#1429 Y-projection Z-projection • 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

  41. NC-eventBrick #: 36564Event 17868408

  42. Ev17868408 Brick#36564 X-projection

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

  44. 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

  45. CC-eventBrick #: 33540Event 18027794 Kitagawa San will present that event..

  46. Event 180277945 CC Ev18027794 Brick#33540 Mu+ 8.7 GeV/c HPT SM1 Not working

  47. Ev18027794 Brick#33540

  48. Ev18027794 Brick#33540 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

  49. Ev18027794 Brick#33540

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