Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

6-2008

Journal or Book Title

Physical Review Letters

Volume

100

Issue

23

First Page

232301

DOI

10.1103/PhysRevLett.100.232301

Abstract

A three-dimensional correlation function obtained from midrapidity, low p(T), pion pairs in central Au+Au collisions at root s(NN) = 200 GeV is studied. The extracted model-independent source function indicates a long range tail in the directions of the pion pair transverse momentum (out) and the beam (long). A proper breakup time tau(0) similar to 9 fm/c and a mean proper emission duration Delta tau similar to 2 fm/c, leading to sizable emission time differences ( approximate to 12 fm/c), are required to allow models to be successfully matched to these tails. The model comparisons also suggest an outside-in "burning" of the emission source reminiscent of many hydrodynamical models.

Comments

This article is published as Afanasiev, S., C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, A. Al-Jamel, K. Aoki et al. "Source breakup dynamics in Au+ Au collisions at s N N= 200 GeV via three-dimensional two-pion source imaging." Physical review letters 100, no. 23 (2008): 232301. DOI:10.1103/PhysRevLett.100.232301. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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