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2006 Relative Luminosity

2006 Relative Luminosity. http://deltag5.lns.mit.edu/~sakuma/protected/star/scaler/2006/index.shtml. Tai Sakuma MIT 4/5/2007. Contents. Proposal on unfilled bunches Relative Luminosity Update Board 11 and 12 Timebin Timestamp on Scaler Files. Proposal on unfilled bunches.

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2006 Relative Luminosity

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  1. 2006 Relative Luminosity http://deltag5.lns.mit.edu/~sakuma/protected/star/scaler/2006/index.shtml Tai Sakuma MIT 4/5/2007

  2. Contents • Proposal on unfilled bunches • Relative Luminosity Update • Board 11 and 12 • Timebin • Timestamp on Scaler Files Tai Sakuma

  3. Proposal on unfilled bunches • I would like to propose not to use any unfilled bunch for the spin analyses. Tai Sakuma

  4. Unfilled bunches are • in the abort gaps • kicked bunches • bunches which are lost • before they enter RHIC • after they enter RHIC Tai Sakuma

  5. For example, for the fill 7652, the bunch 14, 18, 23, 59, 61, 62, 64, 100 were not in the abort gaps or kicked bunches but still they were unfilled Tai Sakuma

  6. For the fill 7909, the bunch 2 was filled at the beginning of the fill but became almost empty by the end of this fill Tai Sakuma

  7. For the fill 7800, the bunch 20 and 60 were only halfway kicked. Tai Sakuma

  8. For the fill 7810, the bunch 20 and 60 were not kicked at all. Tai Sakuma

  9. Determine unfilled bunches • Input • CDEV <measuredFillPatternM> • BBC Coincidence • Method • Extract the fill pattern from each CDEV file • If the fill pattern is not unique for a fill, look at the BBC coincidence and decide if the bunch is filled Tai Sakuma

  10. The list of the fill pattern that I propose to use for the spin analyses http://deltag5.lns.mit.edu/~sakuma/protected/star/scaler/2006/data/fillPatternBxRun6_070405.txt Tai Sakuma

  11. Relative Luminosity Update

  12. The conclusion that I think I am going to reach  correct  wrong Tai Sakuma

  13. Hank said • The board 11 and 12 were well maintained. • The board 5 and 6 were moderately maintained. • The board 7 and 8cannot be trusted. Tai Sakuma

  14. The total rates for run 6. If you plot this with the linear scale, you will see two curves for each fill. Tai Sakuma

  15. These are the 2nd longitudinal runs. Tai Sakuma

  16. Transverse Tai Sakuma

  17. 1st Longitudinal Tai Sakuma

  18. This phenomenon is not evident for 62 GeV but exists Tai Sakuma

  19. These are 2005 runs. Some fills have two curves. Tai Sakuma

  20. The board 11 and 12 agree with the 2nd and the subsequent to the 2nd files from the board 6 Fill 7892 (2006 2nd longitudinal) Tai Sakuma

  21. The same plot except each run has its own panel Tai Sakuma

  22. One pp production run from the same fill Tai Sakuma

  23. The rates for each bunch for this run Tai Sakuma

  24. The timebin BBC coincidence rates for this run without bit16 Board5 Board7 Board8 The peak is between timebin 7 and 8 These two boards don’t have good vertex distribution Tai Sakuma

  25. with bit16 with bit16 Board5 Board7 Board8 Unlike 2005 runs, there are counts for the timebin 1, 2, 3, 12, 13, 14. Tai Sakuma

  26. The difference between with and without bit 16 Board5 Board7 Board8 The vertex distribution can still be seen. Tai Sakuma

  27. This run has six scaler files from the board 6 Board6 4th file 5th file 6th file 1st file 2nd file 3rd file without bit16 Tai Sakuma

  28. with bit16 Board6 4th file 5th file 6th file 1st file 2nd file 3rd file with bit16 Tai Sakuma

  29. The difference Board6 Almost complete agreement from the 2nd to the 6th files 4th file 5th file 6th file 1st file The 1st file has the similar situation with the board 5. 2nd file 3rd file Tai Sakuma

  30. Board5 Board7 Board8 Board5 Board7 Board8 Board5 Board7 Board8 The time window for the bit 16 was the timebin 4 ~ 11 in 2005 without bit16 Run 6174012 Board6 with bit16 without bit16 Board6 Board6 with bit16 the difference the difference Tai Sakuma

  31. These are transverse runs. The board 5 and 6 timebin agree with the upper curve Tai Sakuma

  32. 2nd Longitudinal runs Tai Sakuma

  33. 62 GeV Tai Sakuma

  34. Timestamp is the stop time run7142024_5_1148293515.sca STAR run number Board number timestamp The clock was not accurate or synchronized. Tai Sakuma

  35. Compare the timestamp with the STAR stop time Board8 Board11 Board12 Board5 Board6 Board7 Tai Sakuma

  36. Around May 3rd Board8 Board11 Board12 Board5 Board6 Board7 Tai Sakuma

  37. Comparison of the Scaler run length and the STAR run length Tai Sakuma

  38. Scaler boards ran more than 20% longer than STAR for these runs. run fill bd GlbSetup seconds starsec ratio 7069017 7586 6 minbiasSetup 497.886 93 5.353613 7069017 7586 11 minbiasSetup 499.250 93 5.368280 7069017 7586 12 minbiasSetup 523.098 93 5.624710 7090046 7674 5 ppProduction 741.579 478 1.551421 7090046 7674 6 ppProduction 741.113 478 1.550446 7090046 7674 7 ppProduction 740.729 478 1.549642 7090046 7674 8 ppProduction 740.346 478 1.548841 7090046 7674 11 ppProduction 739.387 478 1.546835 7090046 7674 12 ppProduction 739.067 478 1.546165 7099020 7729 5 pp2006MinBias 1984.320 358 5.542793 7101042 7744 5 ppProductionTrans 2015.230 207 9.735411 7135007 7858 5 pp2006MinBias 629.219 521 1.207714 7135007 7858 7 pp2006MinBias 629.006 521 1.207305 7135007 7858 8 pp2006MinBias 628.917 521 1.207134 Tai Sakuma

  39. To Do • Compute R3 • Bit 16 • The board 11 • The board 12 • Timebin • The Board 5 • The board 6 • by changing timebin to include • Timebin 7, 8 • Timebin 7, 8, 9 • Timebin 6, 7, 8, 9 • Timebin 5, 6, 7, 8, 9, 10 • Timebin 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 • Timebin 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 Tai Sakuma

  40. End

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