Critical behavior in Nt=4 staggered fermion thermodynamics

Claude Bernard, Carleton Detar, Steven Gottlieb, Urs M. Heller, James Hetrick, Kari Rummukainen, Robert L. Sugar, William D Toussaint

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Quantum chromodynamics with two zero mass flavors is expected to exhibit a phase transition with O(4) critical behavior. Fixing the universality class is important for phenomenology and for facilitating the extrapolation of simulation data to physical quark mass values. Other groups have reported results from lattice QCD simulations with dynamical staggered quarks at Nt=4, which suggest a departure from the expected critical behavior. We have pushed simulations to the largest volumes and smallest quark mass to date. Strong discrepancies in critical exponents and the scaling equation of state persist.

Original languageEnglish (US)
Article number054503
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume61
Issue number5
StatePublished - 2000
Externally publishedYes

Fingerprint

fermions
quarks
thermodynamics
quantum chromodynamics
data simulation
phenomenology
fixing
extrapolation
equations of state
simulation
exponents
scaling

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Bernard, C., Detar, C., Gottlieb, S., Heller, U. M., Hetrick, J., Rummukainen, K., ... Toussaint, W. D. (2000). Critical behavior in Nt=4 staggered fermion thermodynamics. Physical Review D - Particles, Fields, Gravitation and Cosmology, 61(5), [054503].

Critical behavior in Nt=4 staggered fermion thermodynamics. / Bernard, Claude; Detar, Carleton; Gottlieb, Steven; Heller, Urs M.; Hetrick, James; Rummukainen, Kari; Sugar, Robert L.; Toussaint, William D.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 61, No. 5, 054503, 2000.

Research output: Contribution to journalArticle

Bernard, C, Detar, C, Gottlieb, S, Heller, UM, Hetrick, J, Rummukainen, K, Sugar, RL & Toussaint, WD 2000, 'Critical behavior in Nt=4 staggered fermion thermodynamics', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 61, no. 5, 054503.
Bernard C, Detar C, Gottlieb S, Heller UM, Hetrick J, Rummukainen K et al. Critical behavior in Nt=4 staggered fermion thermodynamics. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2000;61(5). 054503.
Bernard, Claude ; Detar, Carleton ; Gottlieb, Steven ; Heller, Urs M. ; Hetrick, James ; Rummukainen, Kari ; Sugar, Robert L. ; Toussaint, William D. / Critical behavior in Nt=4 staggered fermion thermodynamics. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2000 ; Vol. 61, No. 5.
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