On the Measure of Dynamical Event-by-Event pt Fluctuations

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Presentation transcript:

On the Measure of Dynamical Event-by-Event pt Fluctuations Jinghua Fu Tsinghua University, Beijing,China & IOPP, Huazhong Normal University, Wuhan, China What we want to measure & What we are doing Measure of Dynamical Fluctuations

Inclusive & Event-by-Event Measurement Inclusive pt Distribution

Event-by-Event Fluctuations NA49 Statistical Fluctuations Fluctuations Bose-Einstein Resonance …….. Temperature Dynamical Fluctuations

Statistical Fluctuations (Fixed multiplicity npar)

Observables

Subtraction Method PHENIX: CERES, STAR: NA49, STAR:

Particle number distribution For a given pm

Fluctuation & Correlation

GeV2 HIJING Au+Au 200GeV n(multiplicity)

Mixed Multiplicity (Independent Particle Emission)

GeV2 HIJING Au+Au 200GeV n(participant)

Summary (fixed multiplicity) non-fixed multiplicity ?