Evidence for a long-range component in the pion emission source in Au + Au collisions at s(NN)**(1/2) = 200-GeV - INSPIRE

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Evidence for a long-range component in the pion emission source in Au + Au collisions at s(NN)**(1/2) = 200-GeV

PHENIX

Collaboration

May, 2006

6 pages

Published in:

Phys.Rev.Lett. 98 (2007) 132301

e-Print:

nucl-ex/0605032 [nucl-ex]

DOI:

10.1103/PhysRevLett.98.132301

Experiments:

BNL-RHIC-PHENIX

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Abstract:

Emission source functions are extracted from correlation functions constructed from charged pions produced at mid-rapidity in Au+Au collisions at sqrt(s_NN)=200 GeV. The source parameters extracted from these functions at low k_T, give first indications of a long tail for the pion emission source. The source extension cannot be explained solely by simple kinematic considerations. The possible role of a halo of secondary pions from resonance emissions is explored.

Note:

334 authors, 6 pages, 3 figures, no tables. Submitted to Phys. Rev. Lett. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

25.75.Dw
25.75.Ld
nucleus nucleus: colliding beams
scattering: heavy ion
gold
pi: hadroproduction
correlation function: two-pion
correlation function: (2pi+)
correlation function: (2pi-)
nuclear reaction: space-time

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