Speaker
Masakiyo Kitazawa
(Osaka University)
Description
Spectral properties of quarks above the critical temperature for
deconfinement are analyzed in quenched lattice QCD on lattices of
size $128^3\times16$.
We study quark spectral function in energy and momentum space,
focusing on the values of the thermal mass and the dispersion
relations of normal and plasmino modes at nonzero momentum, as well
as their spatial volume dependence. Our numerical result suggests
that the dispersion relation of the plasmino mode has a minimum at
nonzero momentum even near the critical temperature. The behavior
of quark self-energy is also analyzed, which is found to be
consistent with the spectral function extracted from the
correlation function.
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Primary author
Masakiyo Kitazawa
(Osaka University)
Co-authors
Prof.
Frithjof Karsch
(Brookhaven National Laboratory)
Prof.
Olaf Kaczmarek
(Bielefeld University)
Dr
Wolfgang Soeldner
(GSI)
