Transverse momentum fluctuations in nuclear collisions at 158A GeV

Journal Article · Wed Sep 01 04:00:00 EDT 2004 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.70.034902· OSTI ID:20695535

Anticic, T; Kadija, K; Susa, T ^[1]; Baatar, B; Kolesnikov, V I; Malakhov, A I; Melkumov, G L ^[2]; Barna, D; Csato, P; Fodor, Z; Gal, J; Hegyi, S; Levai, P; Molnar, J; Palla, G; Sikler, F; Szentpetery, I; Sziklai, J; Varga, D; Veres, G I ^[3]

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1. Rudjer Boskovic Institute, Zagreb (Croatia)
2. Joint Institute for Nuclear Research, Dubna (Russian Federation)
3. KFKI Research Institute for Particle and Nuclear Physics, Budapest (Hungary); and others

Results are presented on event-by-event fluctuations in transverse momentum of charged particles, produced at forward rapidities in p+p, C+C, Si+Si, and Pb+Pb collisions at 158 AGeV. Three different characteristics are discussed: the average transverse momentum of the event, the {phi}{sub p{sub T}} fluctuation measure, and two-particle transverse momentum correlations. In the kinematic region explored, the dynamical fluctuations are found to be small. However, a significant system size dependence of {phi}{sub p{sub T}} is observed, with the largest value measured in peripheral Pb+Pb interactions. The data are compared with predictions of several models.

• OSTI ID: 20695535
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 70; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 REACTIONS
CARBON 12 TARGET
CHARGED PARTICLES
CORRELATIONS
FLUCTUATIONS
GEV RANGE
LEAD 208 REACTIONS
LEAD 208 TARGET
PARTICLE RAPIDITY
PROTON-PROTON INTERACTIONS
SILICON 28 REACTIONS
SILICON 28 TARGET
STATISTICAL MODELS
TRANSVERSE MOMENTUM