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Peter Christiansen Profile

Peter Christiansen

Professor

Peter Christiansen Profile

PHENIX measurements of 3D emission source function in Au-Au collisions at sqrt(s) = 200 GeV

Author

  • R. Lacey
  • Peter Christiansen
  • Hans-Åke Gustafsson
  • Eva Haslum
  • Anders Oskarsson
  • Sarah Rosendahl
  • Evert Stenlund

Summary, in English

A state-of-the-art 3D source imaging technique is used to extract the 3D two-pion source function in central and mid-central Au+Au collisions at GeV. The source function indicates a previously unresolved non-Gaussian tail in the directions of the pion pair transverse momentum (out) and along the beam (long). Model comparisons give robust estimates for several characteristics of the emission source, including its transverse size, mean proper breakup time τ and emission duration Δτ. These estimates point to significant relative emission times which could result from a crossover phase transition.

Department/s

  • Particle and nuclear physics

Publishing year

2008

Language

English

Publication/Series

Journal of Physics G: Nuclear and Particle Physics

Volume

35

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0954-3899