24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Continuum limit and universality of the Columbia plot

25 Jul 2016, 15:15
20m
Building 32 Room 1015 (Highfield Campus, University of Southampton)

Building 32 Room 1015

Highfield Campus, University of Southampton

Talk Nonzero Temperature and Density Nonzero Temperature and Density

Speaker

Dr Philippe de Forcrand (ETH Zurich & CERN)

Description

In its lower left corner, the Columbia plot indicates a first-order finite-temperature phase transition, which turns into a crossover as the quark masses increase. The locus of quark masses giving a second-order transition is a feature of continuum QCD, and should be recovered with any fermion discretization. However, numerical evidence has been accumulating, disfavoring universality. We explore this puzzle with 4 degenerate flavors of staggered fermions, thus avoiding any potential problem associated with rooting.

Primary author

Dr Philippe de Forcrand (ETH Zurich & CERN)

Co-author

Massimo D'Elia (University of Pisa and INFN)

Presentation Materials

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