Jet-Tagged Back-Scattering Photons For Quark Gluon Plasma Tomography

Autor: Fries, Rainer J., De, Somnath, Srivastava, Dinesh K.
Rok vydání: 2012
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1016/j.nuclphysa.2013.02.078
Popis: Direct photons are important probes for quark gluon plasma created in high energy nuclear collisions. Various sources of direct photons in nuclear collisions are known, each of them endowed with characteristic information about the production process. However, it has been challenging to separate direct photon sources through measurements of single inclusive photon spectra and photon azimuthal asymmetry. Here we explore a method to identify photons created from the back-scattering of high momentum quarks off quark gluon plasma. We show that the correlation of back-scattering photons with a trigger jet leads to a signal that should be measurable at RHIC and LHC.
Comment: 4 pages, 2 figures, Contribution to Quark Matter 2012
Databáze: arXiv