The Long Slow Death of the HBT Puzzle
Abstract
Femtoscopic measurements at RHIC have been hailed as a source of insight into the bulk properties of QCD matter. However, hydrodynamic models, which have been successful in reproducing other observables have failed to satisfactorily explain femtoscopic two-particle correlation measurements. This failure has been labeled the "HBT puzzle". In this talk, I present correlations using a hybrid model composed of a viscous hydrodynamic module and a hadronic cascade. After incorporating early acceleration, viscosity and a stiffer equation of state, the extracted source sizes come much closer to experiment.
Keywords
Cite
@article{arxiv.0812.4714,
title = {The Long Slow Death of the HBT Puzzle},
author = {Scott Pratt},
journal= {arXiv preprint arXiv:0812.4714},
year = {2009}
}
Comments
Talk given at WPCF (Workshop on Particle Correlations and Femtoscopy) 2008, Krakow, Poland. Proceedings to be published in Acta Physica Polonica B