6 research outputs found
A comparative Study of the Computing Methods Actually in use for Accurate Determination of Swarm Parameters
What happens to the and η b in the quark-gluon plasma? Bottomonium spectral functions from lattice QCD
We study bottomonium spectral functions in the quark-gluon
plasma in the Υ
and
η
b
channels, using lattice QCD simulations with two flavours of
light quark on highly
anisotropic lattices. The bottom quark is treated with nonr
elativistic QCD (NRQCD). In
the temperature range we consider, 0
.
42
≤
T/T
c
≤
2
.
09, we find that the ground states
survive, whereas the excited states are suppressed as the te
mperature is increased. The
position and width of the ground states are compared to analy
tical effective field theory
(EFT) predictions. Systematic uncertainties of the maximu
m entropy method (MEM),
used to construct the spectral functions, are discussed in s
ome detail