Bose-Einstein correlations in thermal field theory

Abstract

Two-particle correlation functions are calculated for bosons emitted from a localized thermal source (the ``glow'' of a ``hot spot''). In contrast to existing work, non-equilibrium effects up to first order in gradients of the particle distribution function are taken into account. The spectral width of the bosons is shown to be an important quantity: If it is too small, they do not equilibrate locally and therefore strongly increase the measured correlation radius. In memoriam of Eugene Wigner and Hiroomi Umezawa.

Paper in LaTeX. Figures and complete paper available via anonymous ftp, ftp://tpri6c.gsi.de/pub/phenning/hhbr95

References in corpus (2)

• The Delta-Hole model at Finite Temperature
• Thermo Field Dynamics and Kinetic Coefficients of a Charged Boson Gas

Cited by in corpus (1)

• The Bose-Einstein correlation function $C_2(Q)$ from a Quantum Field Theory point of view