Transverse momentum and energy correlations in the equilibrium system from high-energy nuclear collisions

Jun, 1998
5 pages
Published in:
  • Phys.Lett.B 439 (1998) 6-11
e-Print:

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Abstract:
The so-called Φ\Phi parameter, which measures the transverse momentum or energy correlations (fluctuations) in high-energy collisions independently of the particle multiplicity, is computed for the equilibrium ideal gas. As expected Φ\Phi vanishes for the particles obeying Boltzmann statistics but is finite for the quantum particles, positive for bosons and negative for fermions. Φp\Phi_{p_{\perp}}, which is found for the pions gas, significantly exceeds the value of Φp\Phi_{p_{\perp}} measured by the NA49 experiment. The discrepancy is discussed.
Note:
  • corrected version
  • 25.75.+r
  • 24.60.-k
  • 24.60.Ky
  • Relativistic heavy-ion collisions
  • Thermal model
  • Fluctuations
  • scattering: heavy ion
  • model: thermodynamical
  • pi: gas
  • transverse momentum: correlation