English

QGP tomography with photon tagged jets in ALICE

High Energy Physics - Phenomenology 2011-02-11 v1

Abstract

γ+\gamma +jet events provide a tomographic measurement of the medium formed in heavy ion collisions at LHC energies. Tagging events with a well identified high pTp_{T} direct photon and measuring the correlation distribution of hadrons emitted oppositely to the photon, allows us to determine, with a good approximation, both the jet fragmentation function and the back-to-back azimuthal misalignement of the direct photon and the jet. Comparing these two observables measured in pppp collisions with the ones measured in AAAA collisions will reveal the modifications of the jet structure induced by the medium formed in AAAA collisions and consequently will infer the medium properties.

Keywords

Cite

@article{arxiv.1102.2123,
  title  = {QGP tomography with photon tagged jets in ALICE},
  author = {Yaxian Mao and Yves Schutz and Daicui Zhou and Christophe Furget and Gustavo Conesa Balbastre},
  journal= {arXiv preprint arXiv:1102.2123},
  year   = {2011}
}

Comments

3 pages, 3 figures, Proceedings for 5th International Conference on Quarks and Nuclear Physics