16
QuickTime TIFF (Uncomp are needed 2006 Relative Luminosity Tai Sakuma Tai Sakuma MIT MIT 6/13/2007 6/13/2007
QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
2006 Relative Luminosity2006 Relative Luminosity
Tai Sakuma Tai Sakuma MITMIT
6/13/20076/13/2007
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
• 2006 Fill Pattern (bxing masking)– Determination from CDEV– Confirmation with BBC coincidence– SpinDB
• 2006 Relative Luminosity– Release– BBC-ZDC comparison
• Preparation for 2008– Issues to be resolved before run 2008
ContentsContents
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
2006 Fill Pattern (bxing mask)2006 Fill Pattern (bxing mask)
• Spin sorted yields and relative luminosity should use the same set of the bxings.
• Choose bxings which are not in the abort gaps, not kicked, or lost.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
Determination of Fill Pattern (bxing mask)Determination of Fill Pattern (bxing mask)
• Determination of the fill patterns (bxing mask) from CDEV– <measuredFillPatternM>– Logical AND is taken to
determine one fill pattern (mask) for a RHIC fill.
• Confirmation with BBC coincidence– Minimum conincidence rates for
each bxing.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
Summary on Fill Pattern (bxing mask)Summary on Fill Pattern (bxing mask)
• 159 fills (2508 runs)– The number of the fills for which
the fill patterns (bxing mask) are
determined from CDEV. These patterns (masks) will be entered into SpinDB.
• 127 fills (2023 runs)– The number of the fills for which
the fill patterns (bxing mask) are confirmed with the BBC coincidence counts.
• 32 fills– No scaler files for those fills.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
2006 Relative Luminosity2006 Relative Luminosity
• Preliminary Release– http://deltag5.lns.mit.edu/~sakuma/protected/star/scaler/2006/prelim_release.shtml
– Used the fill patterns (bxing masks) that I determined– 566 runs for 80 fills
• Final Release– There will be the final release with the systematic
uncertainty.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
BBC-ZDC ComparisonBBC-ZDC Comparison
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
The ratio of the ZDC and BBC coincidence counts jumps
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
BBC-ZDC ComparisonBBC-ZDC Comparison
• Leading bunch effect– The ratio is large for the first ten bunches for the yellow and
blue beam
• Ripple effect– The ratio oscillates with low frequency
• Saw tooth effect– The ratio oscillates with high frequency
The ratio of the ZDC and BBC coincidence counts for bxings.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
Issues to be resolved for 2008Issues to be resolved for 2008
• Timestamp– For 2006, the clock used for the timestamp on the scaler files was not
synchronized with the STAR run time.
• BBC Coincidence Counts– For Board 6 for each run, the 1st file behaved differently from the 2nd and
after the 2nd files.– Board 7 and 8 don’t have good a vertex distribution.– Board 5, 6 timebin and board 6 bit 16 for 2nd and after the 2nd files are
consistent with board 11, 12 bit16. Board 5, 7, 8 bit 16 and board 6 bit 16 for 1st file are consistent with one another but not with board 11, 12.
• BBC - ZDC comparison– Coincidence counts is not flat over the time– Coincidence counts is not flat over the bxings.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
The Board Number
5 6(1st file)
6(2nd file~)
7 8 11 12
Bit 16 Timebin N/A N/A
: consistent with one another
: consistent with one another
and are not consistent with each other
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
6/13/2007 Tai SakumaQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
EndEnd
