Speaker
Xiao-Yong Jin
(Columbia University)
Description
We summarize our study of QCD with 8 and 12 flavors
of degenerate quarks at zero temperature, using the DBW2 gauge
action and naive staggered fermions, along with the rational
hybrid Monte Carlo algorithm. From measurements of hadron
masses, decay constants and other low energy observables, we
conclude that such a system with 8 and 12 flavors breaks chiral
symmetry and exhibits confinement, although for 12 flavors we see
a rapid evolution from strong to weak coupling in hadronic
observables, which makes further simulations on large volumes
desirable. We report on preliminary results from further
simulations of the same systems at finite temperatures, to
address the existence of the finite temperature phase transition
and to probe the nature of such phase transition at large number
of quark flavors.
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Primary author
Xiao-Yong Jin
(Columbia University)
Co-author
Robert Mawhinney
(Columbia University)
