TY  - JOUR
A1  - Brandt, Bastian Benjamin
A1  - Francis, Anthony
A1  - Harris, Tim
A1  - Meyer, Harvey B.
A1  - Steinberg, Aman
T1  - An estimate for the thermal photon rate from lattice QCD
T2  - EPJ Web of Conferences
N2  - 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.
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/71842
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-718423
SN  - 2100-014X
VL  - 175
IS  - 07044
PB  - EDP Sciences
CY  - Les Ulis
ER  -