The thermal photon emissivity at the QCD chiral crossover from imaginary momentum correlators
The thermal photon emissivity at the QCD chiral crossover from imaginary momentum correlators
The thermal photon emissivity at the QCD chiral crossover is investigated using imaginary momentum correlators. These have been measured on a newly generated $20 \times 96^3$ lattice-QCD ensemble with $\mathrm{O}(a)$-improved Wilson quarks and physical up, down and strange quark masses at a temperature $T=154$\,MeV near the pseudo-critical temperature. In order …