Light hadron spectrum of quenched QCD on a 32[sup 3][times]64 lattice

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.4408· OSTI ID:5948009

Kim, S; Sinclair, D K ^[1]

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1. HEP Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)

We have measured the spectrum of light hadrons ([pi],[rho],[ital a][sub 1],[ital b][sub 1],[ital f][sub 0]/[ital a][sub 0],[ital N], and [Delta]) in the quenched approximation to lattice QCD on a 32[sup 3][times]64 lattice at [beta]=6/[ital g][sup 2]=6.5. For these measurements we have used staggered quark propagators from two different wall sources. The quark masses used were [ital m][sub [ital q]]=0.01, [ital m][sub [ital q]]=0.005, and [ital m][sub [ital q]]=0.025 (lattice units), allowing an [ital m][sub [pi]]/[ital m][sub [rho]] as low as [similar to]0.4. We were able to verify the PCAC relation [ital m][sub [pi]][sup 2][proportional to][ital m][sub [ital q]], and estimate [ital f][sub [pi]]=93(4) MeV.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5948009
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662110 -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662230* -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
LATTICE FIELD THEORY
MASS SPECTRA
POSTULATED PARTICLES
PROPAGATOR
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SPECTRA