Anthony Francis

Thermal dilepton rate and electrical conductivity: An analysis of vector current correlation functions in quenched lattice QCD

We calculate the vector current correlation function for light valence quarks in the deconfined phase of QCD. The calculations have been performed in quenched lattice QCD at T ≃ 1.45Tc for four values of the lattice cut-off on lattices up to size 128 3 × 48. This allows to perform a continuum extrapolation of the correlation function in the Euclidean time interval 0.2 ≤ τT ≤ 0.5, which extends to the largest temporal separations possible at finite temperature, to better than 1% accuracy. In this interval, at the value of the temperature investigated, we find that the vector correlation function never deviates from the free correlator for massless quarks by more than 9%. We also determine the first two non-vanishing thermal moments of the vector meson spectral function. The second thermal moment deviates by less than 7% from the free value. With these constraints, we then proceed to extract information on the spectral representation of the vector correlator and discuss resulting consequences for the electrical conductivity and the thermal dilepton rate in the plasma phase.

Charmonium properties in hot quenched lattice QCD

We study the properties of charmonium states at finite temperature inquenched QCD on large and fine isotropic lattices. We perform a detailedanalysis of charmonium correlation and spectral functions both below and above

Simulation of QCD with N f = 2 + 1 flavors of non-perturbatively improved Wilson fermions

T_c

Nonperturbative estimate of the heavy quark momentum diffusion coefficient

. Our analysis suggests that both S wave states (

Thermal correlators in the ρ channel of two-flavor QCD

J/\psi

The hadronic vacuum polarization contribution to the muon g − 2 from lattice QCD

and

Critical point and scale setting in SU(3) plasma: An update

\eta_c

Towards a non-perturbative measurement of the heavy quark momentum diffusion coefficient

)and P wave states (

Heavy quark diffusion from lattice QCD spectral functions

\chi_{c0}

Charge transport and vector meson dissociation across the thermal phase transition in lattice QCD with two light quark flavors

and