Resolving the Hanbury Brown-Twiss Puzzle in Relativistic Heavy Ion Collisions

Journal Article · Fri Jun 12 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.232301· OSTI ID:21325539

Pratt, Scott ^[1]

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1. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)

Two particle correlation data from the BNL Relativistic Heavy Ion Collider have provided detailed femtoscopic information describing pion emission. In contrast with the success of hydrodynamics in reproducing other classes of observables, these data had avoided description with hydrodynamic-based approaches. 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 prethermalized acceleration, using a stiffer equation of state, and adding viscosity.

• OSTI ID: 21325539
• Journal Information: Physical Review Letters, Vol. 102, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.102.232301; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATION
BROOKHAVEN RHIC
EQUATIONS OF STATE
HEAVY ION REACTIONS
HYDRODYNAMIC MODEL
HYDRODYNAMICS
INTERFEROMETRY
PIONS
RELATIVISTIC RANGE