Squeezed Fermions at Relativistic Heavy Ion Colliders

Abstract

Large back-to-back correlations of observable fermion -- anti-fermion pairs are predicted to appear, if the mass of the fermions is modified in a thermalized medium. The back-to-back correlations of protons and anti-protons are experimentally observable in ultra-relativistic heavy ion collisions, similarly to the Andreev reflection of electrons off the boundary of a superconductor. While quantum statistics suppresses the probability of observing pairs of fermions with nearby momenta, the fermionic back-to-back correlations are positive and of similar strength to bosonic back-to-back correlations.

LaTeX, ReVTeX 12 pages, uses epsf.sty, 2 eps figures, improved presentation

References in corpus (3)

• Positive and negative Hanbury-Brown and Twiss correlations in normal metal-superconducting devices
• Andreev Reflection in Strong Magnetic Fields
• The reconstructed final state of Pb + Pb 158 AGeV reactions from spectra and correlation data of NA49, NA44 and WA98

Cited by in corpus (8)

• Back-to-Back Correlations for Finite Expanding Fireballs
• Review of HBT or Bose-Einstein correlations in high energy heavy ion collisions
• Squeezed K^+ K^- correlations in high energy heavy ion collisions
• Searching for squeezed particle-antiparticle correlations in high energy heavy ion collisions
• Search for Squeezed-Pair Correlations at RHIC
• Squeezed correlations of strange particle-antiparticles
• Survival of Back-to-Back Correlations for Finite Expanding Fireballs
• Wigner Functions in High Energy Physics