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Title: Hadron spectrum of quenched QCD on a 32{sup 3} {times} 64 lattice

Conference ·
OSTI ID:10111840

Preliminary results from a hadron spectrum calculation of quenched Quantumchromodynamics on a 32{sup 3} {times} 64 lattice at {beta} = 6.5 are reported. The hadron spectrum calculation is done with staggered quarks of masses, m{sub q}a = 0.001, 0.005 and 0.0025. We use two different sources in order to be able to extract the {Delta} mass in addition to the usual local light hadron masses. The numerical simulation is executed on the Intel Touchstone Delta computer. The peak speed of the Delta for a 16 {times} 32 mesh configuration is 41 Gflops for 32 bit precision. The sustained speed for our updating code is 9.5 Gflops. A multihit metropolis algorithm combined with an over-relaxation method is used in the updating and the conjugate gradient method is employed for Dirac matrix inversion. Configurations are stored every 1000 sweeps.

Research Organization:
Argonne National Lab., IL (United States). High Energy Physics Div.
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
10111840
Report Number(s):
ANL-HEP-CP-92-92; CONF-9209276-3; ON: DE93004157
Resource Relation:
Conference: LATTICE `92: lattice field theory,Amsterdam (Netherlands),15-19 Sep 1992; Other Information: PBD: Oct 1992
Country of Publication:
United States
Language:
English

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