Electromagnetic signal of the QCD phase transition in neutron star mergers
arXiv:1305.7397 · doi:10.1103/PhysRevD.88.083006
Abstract
Mergers of binary neutron stars create conditions of supranuclear density and moderate temperature . These events thus probe a sensitive region of the density-temperature phase diagram of QCD matter. We study photon production by the QCD conformal anomaly for a signal of a possible transition to quark degrees of freedom during the merger. We discuss energy loss due to photon radiation as a cooling mechanism that is sensitive to the bulk viscosity and thermal conductivity of the quark matter.
9 pages, 3 figures, two column revtex format; v2 typos corrected, Sec II discussion improved; v3 as published
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