English

Resolving the HBT Puzzle in Relativistic Heavy Ion Collision

Nuclear Theory 2009-07-22 v1

Abstract

Two particle correlation data from the Relativistic Heavy Ion Collider have provided detailed femtoscopic information describing the space-time structure of the emission of pions. This data had avoided description with hydrodynamic-based approaches, in contrast to the success of hydrodynamics in reproducing other classes of observables. This failure has inspired the term ``HBT puzzle'', where HBT refers to femtoscopic studies which were originally based on Hanbury-Brown Twiss interferometry. Here, the puzzle is shown to originate not from a single shortcoming of hydrodynamic models, but the combination of several effects: mainly including pre-thermalized acceleration, using a stiffer equation of state, and adding viscous corrections.

Keywords

Cite

@article{arxiv.0811.3363,
  title  = {Resolving the HBT Puzzle in Relativistic Heavy Ion Collision},
  author = {Scott Pratt},
  journal= {arXiv preprint arXiv:0811.3363},
  year   = {2009}
}

Comments

4 pages, 2 figures