Thu·May 28, 2015Thursday·May 28, 2015

1. 01*

   Dilepton production spectrum above Tc with a lattice quark propagator

   Taekwang Kim🇯🇵 · Masayuki Asakawa🇯🇵 · Masakiyo Kitazawa🇯🇵

   The dilepton production rate from the deconfined medium is analyzed with the photon self-energies constructed from quark propagators obtained by lattice numerical simulation for two values of temperature $T=1.5T_{\mathrm{c}}$ and $3T_{\mathrm{c}}$ above the critical temperature $T_{\mathrm{c}}$. The photon self-energy is calculated by the Schwinger-Dyson equation with the lattice quark propagtor and a vertex function determined so as to satisfy the Ward-Takahashi identity. The obtained dilepton production rate at zero momentum exhibits divergences reflecting van Hove singularity, and is significantly enhanced around $\omega \simeq T$ compared with the rate obtained by the perturbative analysis.

   ↳ nucl-thhep-phnucl-exPRD(2015)·11 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.