On transverse momentum event–by–event fluctuations in string hadronic models
Transverse momentum event–by–event fluctuations are studied within the string–hadronic model of high energy nuclear collisions, LUCIAE. Data on non–statistical \(p_T\) fluctuations in p+p interactions are reproduced. Fluctuations of similar magnitude are predicted for nucleus–nucleus collisions, in contradiction to the preliminary NA49 results. The introduction of a string clustering mechanism (Firecracker Model) leads to a further, significant increase of \(p_T\) fluctuations for nucleus–nucleus collisions. Secondary hadronic interactions, as implemented in LUCIAE, cause only a small reduction of \(p_T\) fluctuations.
KeywordsTransverse Momentum Similar Magnitude Small Reduction Statistical Fluctuation Momentum Event
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