The order of the chiral transition in N_f=2 QCD

M. D'Elia, A. Di Giacomo, Claudio Pica

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Abstrakt

A strategy is developed to investigate the order of the transition using finite size scaling and its relation to color confinement. An in-depth numerical investigation has been performed with KS fermions on lattices with N_t=4 and N_s=12,16,20,24,32 and quark masses am_q ranging from 0.01335 to 0.35. The specific heat and a number of susceptibilities have been measured and compared with the expectation of an O(4) second order and a first order phase transition. A second order O(4) is excluded, whilst data are consistent with a first order.
OriginalsprogEngelsk
TidsskriftNuclear Physics B - Proceedings Supplements
ISSN0920-5632
DOI
StatusUdgivet - 6. aug. 2004

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