TY  - CONF
A1  - Cuteri, Francesca
A1  - D'Ambrosio, Alfredo
A1  - Philipsen, Owe
A1  - Sciarra, Alessandro
T1  - The chiral phase transition from strong to weak coupling
N2  - The order of the chiral phase transition of lattice QCD with unimproved staggered fermions is known to depend on the number of quark flavours, their masses and the lattice spacing. Previous studies in the literature for Nf∈{3,4} show first-order transitions, which weaken with decreasing lattice spacing. Here we investigate what happens when lattices are made coarser to establish contact to the strong coupling region. For Nf∈{4,8} we find a drastic weakening of the transition when going from Nτ=4 to Nτ=2, which is consistent with a second-order chiral transition reported in the literature for Nf=4 in the strong coupling limit. This implies a non-monotonic behaviour of the critical quark or pseudo-scalar meson mass, which separates first-order transitions from crossover behaviour, as a function of lattice spacing.
Y1  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/68637
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-686373
ER  -