Speaker
Mr
Somnath De
(VECC, Kolkata)
Description
We have investigated the correlations of photons produced by back scattering of fast partons in quark gluon plasma with their away‐side jets. Back-scattering photons or the jet-conversion photons was first proposed as a unique source of photons in PRL 90,132301(2003). Attempts to identify this source in experiment through inclusive direct photon spectra or direct photon v_2 at intermediate pT at RHIC have been inconclusive so far. We have shown that there is a possibility to separate back-scattering photons from other photon sources using trigger jets. We have calculated the back-scattering photon spectra in coincidence with trigger jet at the RHIC and LHC energy and shown the distinct behaviour of nuclear modification of photon production around the trigger jet E_T window.
Summary
A new method has been proposed to separate the back-scattering photons from the inclusive direct photon spectrum obtained in heavy ion collisions at the RHIC and LHC energies.
Author
Mr
Somnath De
(VECC, Kolkata)
Co-authors
Dr
Dinesh K. Srivastava
(VECC, Kolkata)
Dr
Rainer J Fries
(Texas A & M University, USA)
