The Long Slow Death of the HBT Puzzle

Scott Pratt

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arXiv · 0812.4714

The Long Slow Death of the HBT Puzzle

Scott Pratt

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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.

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Scott Pratt. 2008-12-26. The Long Slow Death of the HBT Puzzle. https://arxiv.org/abs/0812.4714

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