Finite lifetime effects on the photon production from a quark-gluon plasma

Details Finite lifetime effects on the photon production from a quark-gluon plasma Finite lifetime effects on the photon production from a quark-gluon plasma

2009-06-09

arxiv.org/abs/0906.1734v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contributed to the proceedings of the XLVII International Winter Meeting on Nuclear Physics, Bormio (Italy), Jan. 26-30, 2009

Scientific paper

We use the real-time Keldysh formalism to investigate finite lifetime effects
on the photon emission from a quark-gluon plasma (QGP). We provide an ansatz
which eliminates the divergent contribution from the vacuum polarization and
renders the photon spectrum UV-finite if the time evolution of the QGP is
described in a suitable manner.

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