QM 2011 - XXII International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

May 22 – 28, 2011
Centre Bonlieu
Europe/Zurich timezone

Interference of thermal photons from quark and hadronic phases in relativistic collisions of heavy nuclei

Not scheduled
Théâtre National (Centre Bonlieu)

Théâtre National

Centre Bonlieu

France
Board: 99
Poster Electromagnetic probes

Speakers

Prof. Dinesh Srivastava (Variable Energy Cyclotron Centre)Dr Rupa Chatterjee (University of Jyvaskyla)

Description

We explore the intensity correlations for thermal photons having $K_T\leq$ 2 GeV/$c$, for central collisions of heavy nuclei at RHIC and LHC energies. These photons get competing contributions from the quark and the hadronic phases. This competition gives rise to a unique structure, especially in the outward correlation function, due to the interference between the photons from the two sources. The temporal separation of the two sources provides the life time of the system and their strengths provide the relative contribution of the two phases. The results are found to be quite sensitive to the quark-hadron phase transition temperature and the formation time of the plasma. Ref:Phys.Rev.C80:054914 (2009)

Primary author

Prof. Dinesh Srivastava (Variable Energy Cyclotron Centre)

Co-author

Dr Rupa Chatterjee (University of Jyvaskyla)

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