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Pt Study of the P violation Signals

Vasily DzhordzhadzeParity Group Teleconference

January 29, 2009

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Goal of the Study• Pt dependence of the signal• Pt cut : 0.15 – 2.0 GeV/c• Pt cut : 0.10 – 100. GeV/c• Compare signal for different Pt regions• 0.15 – Ptb to Ptb -2.0 GeV/c • Ptb = 0.4, 0.5, 0.6 and 0.7 GeV/c

Run 4, AuAu 200 GeV, 14 M events

Cut: 0.15<Pt<2.0 GeV/c

Pt, GeV/c

44

Run 4, AuAu 200 GeV, 14 M events 0.15<Pt<2.0

55

Run 4, AuAu 200 GeV, 14 M events 0<Pt<100 GeV/c

66

Run 4, AuAu 200 GeV, 14 M events 0.15<Pt<0.4 GeV/c

77

Run 4, AuAu 200 GeV, 14 M events 0.4<Pt<2.0 GeV/c

88

Run 4, AuAu 200 GeV, 14 M events 0.15<Pt<0.5GeV/c

99

Run 4, AuAu 200 GeV, 14 M events 0.5<Pt<2.0 GeV/c

1010

Run 4, AuAu 200 GeV, 14 M events 0.15<Pt<0.6 GeV/c

1111

Run 4, AuAu 200 GeV, 14 M events 0.6<Pt<2.0 GeV/c

1212

Run 4, AuAu 200 GeV, 14 M events 0.15<Pt<0.7 GeV/c

1313

Run 4, AuAu 200 GeV, 14 M events 0.7<Pt<2.0 GeV/c

1414

Run 4, AuAu 200 GeV, 14 M events 0.1<Pt<0.6 GeV/c

1515

Run 4, AuAu 200 GeV, 14 M events 0.6<Pt<100 GeV/c

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Summary• In experiment no signal for Pt < 0.6 GeV/c• Strong signals for Pt> 0.6 GeV/c• Pt < 0.6 GeV/c ~ 40% of total stat. - no Signal• Pt > 0.6 GeV/c ~ 14% of total stat. - stromg

deviations• Cross regions ~ 46% of total stat. - not

analysed • Independent confirmation of the observation is

needed!• An Explanation ?