An estimate for the thermal photon rate from lattice QCD

Bastian B. Brandt, Anthony Francis, Tim Harris, Harvey B. Meyer, Aman Steinberg

研究成果: Conference article同行評審

12 引文 斯高帕斯(Scopus)


We estimate the production rate of photons by the quark-gluon plasma in lattice QCD. We propose a new correlation function which provides better control over the systematic uncertainty in estimating the photon production rate at photon momenta in the range πT/2 to 2πT. The relevant Euclidean vector current correlation functions are computed with Nf = 2 Wilson clover fermions in the chirally-symmetric phase. In order to estimate the photon rate, an ill-posed problem for the vector-channel spectral function must be regularized. We use both a direct model for the spectral function and a modelindependent estimate from the Backus-Gilbert method to give an estimate for the photon rate.

期刊EPJ Web of Conferences
出版狀態Published - 26 3月 2018
事件35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain
持續時間: 18 6月 201724 6月 2017


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