Speaker
Maria Paola Lombardo
(INFN)
Description
The FASTSUM collaboration has been carrying out lattice simulations of QCD for
temperatures ranging from one third to twice the critical temperature,
investigating the chiral and deconfining aspects of the transition, as well as
the properties of the Quark Gluon Plasma.
In this contribution we concentrate
on spectral functions and on some of the associated transport
coefficients. We work in a fixed scale scheme and use anisotropic lattices
which help achieving the desirable fine resolution in the temporal direction,
thus facilitating the (ill posed) integral transform from imaginary time to
frequency space. We study the pattern of sequential dissociation for
charmonium and bottomonium, and analyse the temperature dependence of the
masses and width of the surviving states. The results are obtained with a
physical strange mass, a pion mass of 400 MeV, and a lattice spacing of
0.12 fm. Simulations at the physical pion mass and with a finer lattice spacing are in progress and their status might be reported as well.
| On behalf of collaboration: | [Other] |
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Primary author
Maria Paola Lombardo
(INFN)
Co-authors
Alessandro Amato
(Helsinki University)
Aoife Kelly
(National University of Ireland Maynooth)
Chris Allton
(Swansea University)
Gert Aarts
(Swansea University)
Jon-Ivar Skullerud
(National University of Ireland Maynooth)
Kristi Praki
(Swansea University)
Pietro Giudice
(Muenster University)
Se Yong Kim
(Sejong University (KR))
Simon Hands
(Swansea University)
Sinead Ryan
(Trinity College Dublin)
Tim Harris
(Trinity College, University of Dublin)
Wynne Evans
(University of Bern)
