Critical behavior in N{sub t}=4 staggered fermion thermodynamics

Journal Article · Wed Mar 01 00:00:00 EST 2000 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.61.054503· OSTI ID:20215924

Bernard, Claude ^[1]; DeTar, Carleton ^[2]; Gottlieb, Steven ^[3]; Heller, Urs M ^[4]; Hetrick, James ^[5]; Rummukainen, Kari ^[6]; Sugar, Robert L ^[7]; Toussaint, Doug ^[8]

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1. Department of Physics, Washington University, St. Louis, Missouri 63130 (United States)
2. Department of Physics, University of Utah, Salt Lake City, Utah 84112 (United States)
3. Indiana University, Bloomington, Indiana 47405 (United States)
4. SCRI, The Florida State University, Tallahassee, Florida 32306-4130 (United States)
5. University of the Pacific, Stockton, California 95211 (United States)
6. NORDITA, Blegdamsvej 17, DK-2100 Copenhagen Oe, (Denmark)
7. Department of Physics, University of California, Santa Barbara, California 93106 (United States)
8. Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

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 N{sub t}=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. (c) 2000 The American Physical Society.

• OSTI ID: 20215924
• Journal Information: Physical Review. D, Particles Fields, Vol. 61, Issue 5; Other Information: PBD: 1 Mar 2000; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM CHROMODYNAMICS
PHASE TRANSFORMATIONS
SCALING LAWS
FLAVOR MODEL
LATTICE FIELD THEORY
QUARKS
MASS
THEORETICAL DATA