The order of the chiral transition in N_f=2 QCD

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

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Abstract

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.
Original languageEnglish
JournalNuclear Physics B - Proceedings Supplements
ISSN0920-5632
DOIs
Publication statusPublished - 6. Aug 2004

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quantum chromodynamics
fermions
specific heat
quarks
magnetic permeability
color
scaling

Keywords

  • hep-lat

Cite this

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journal = "Nuclear and Particle Physics Proceedings",
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The order of the chiral transition in N_f=2 QCD. / D'Elia, M.; Di Giacomo, A.; Pica, Claudio.

In: Nuclear Physics B - Proceedings Supplements, 06.08.2004.

Research output: Contribution to journalConference articleResearchpeer-review

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T1 - The order of the chiral transition in N_f=2 QCD

AU - D'Elia, M.

AU - Di Giacomo, A.

AU - Pica, Claudio

PY - 2004/8/6

Y1 - 2004/8/6

N2 - 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.

AB - 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.

KW - hep-lat

U2 - 10.1016/j.nuclphysbps.2004.11.363

DO - 10.1016/j.nuclphysbps.2004.11.363

M3 - Conference article

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

SN - 2405-6014

ER -