• Munshi G Mustafa

      Articles written in Pramana – Journal of Physics

    • Can van Hove singularities be observed in relativistic heavy-ion collisions?

      Munshi G Mustafa Markus H Thoma

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      Based on general arguments, the in-medium quark propagator in a quark-gluon plasma leads to a quark dispersion relation consisting of two branches, of which one exhibits a minimum at some finite momentum. This results in a vanishing group velocity for collective quark modes. Important quantities such as the production rate of low mass lepton pairs and mesonic correlators depend inversely on this group velocity. Therefore these quantities, which follow from self energy diagrams containing a quark loop, are strongly affected by van Hove singularities (peaks and gaps). If these sharp structures could be observed in relativistic heavy-ion collisions it would reveal the physical picture of the quark-gluon plasma (QGP) as a gas of quasiparticles.

    • Some applications of thermal field theory to quark-gluon plasma

      Munshi G Mustafa

      More Details Abstract Fulltext PDF

      We briefly introduce the thermal field theory within imaginary time formalism, the hard thermal loop perturbation theory and some of its applications to the physics of the quark-gluon plasma, possibly created in relativistic heavy-ion collisions

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