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Quenched QCD spectrum on a 32{sup 3} {times} 64 lattice

Conference ·
OSTI ID:10110440
We present light hadron masses calculated from quenched QCD on a 32{sup 3} {times} 64 lattice, using staggered quark sources of masses, m{sub q}a = 0.01,0.005 and 0.0025. Results from {beta} = 6. 0(preliminary) and those from {beta} = 6.5 are compared. Using m{sub p}(m{sub q} = 0) and f{sub {pi}}, we suggest that {beta} = 6.5 is in the asymptotic scaling region and {beta} = 6.0 result shows {approximately} 20% (bare coupling) or {approximately} 10% (improved coupling) scaling violation. Flavor symmetry appears to be restored at {beta} = 6.5. The estimated pion decay constant, f{sub {pi}}, is 93(4) MeV at {beta} = 6.5, where the experimental value is 93 MeV.
Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
10110440
Report Number(s):
ANL-HEP-CP--93-98; CONF-9310250--1; ON: DE94004623
Country of Publication:
United States
Language:
English

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