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Peter Christiansen Profile

Peter Christiansen

Professor

Peter Christiansen Profile

High-pt direct photon-hadron correlations using the PHENIX detector

Author

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

Summary, in English

Direct photons are a powerful probe to study the property of quark–gluon plasma (QGP) in high energy heavy-ion collisions. In non-central collisions, the anisotropy of the collision region produces the different pressure gradients and particle density that results in different anisotropy of particle emission, depending on the production processes of photons. Therefore, an azimuthal anisotropy parameter v2 is a powerful tool to explore the source of direct photons. We report on the latest direct photon analysis of the nuclear modification factor in and 62.4 GeV Au + Au collisions, and v2 at high pT in 200 GeV Au + Au collisions at RHIC-PHENIX (Run4). We also present the analysis status, using a larger statistics and better reaction plane information from a new detector available from RHIC Run7 data.

Department/s

  • Particle and nuclear physics

Publishing year

2008

Language

English

Publication/Series

Journal of Physics G: Nuclear and Particle Physics

Volume

35

Issue

10

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0954-3899