Time resolution in TileCal

1
Time resolution in TileCal

• Petr Tas
• Charles University in Prague

TileCal Week, 14 Feb 2005
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Time resolution dT sigma(Time5-Time2) / v2
(Cell A-1)

• Gain cut
• Select En interval
• T5-T2 distribution
• Gaussian fit
• dT
• dT vs En

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Flat filter vs Fit method
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Fit dT vs En50 GeV electrons, cell A-1

• P1 energy term
• P2 noise term
• High gain
• P11.91 0.02
• P20.21 0.33
• Low gain
• P12.24 0.24
• P221.1 1.0

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Fit dT vs En180 GeV electrons, cell A-1

• High gain
• P12.06 0.03
• P20.41 0.19
• Low gain
• P12.54 0.04
• P221.1 0.5

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To do

• Eta scan
• Energy scan (pion 350 GeV)
• Cell B/C D