Hadron spectrum of quenched QCD on a 323 x 64 lattice
Creators
- 1. High Energy Physics Div., Argonne National Lab., IL (United States)
Description
Preliminary results from a hadron spectrum calculation of quenched Quantumchromodynamics on a 323 x 64 lattice at β = 6.5 are reported. The hadron spectrum calculation is done with staggered quarks of masses, mqa 0.01, 0.005 and 0.0025. We use two different sources in order to be able to extract the Δ 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 x 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. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics. B, Proceedings Supplements
- Journal Volume
- 30
- Journal Page Range
- p. 381-384.
- ISSN
- 0920-5632
- CODEN
- NPBSE7
Conference
- Title
- International symposium on lattice field theory (Lattice '92).
- Dates
- 15-19 Sep 1992.
- Place
- Amsterdam (Netherlands).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 25019773
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALGORITHMS; A1-1270 MESONS; B1-1235 MESONS; COMPUTERIZED SIMULATION; DELTA-1232 BARYONS; DIRAC OPERATORS; EFFECTIVE MASS; FLUCTUATIONS; HADRONS; LATTICE FIELD THEORY; MASS DIFFERENCE; MASS SPECTRA; MATRICES; NUCLEONS; PIONS; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS; RHO-770 MESONS
- Descriptors DEC
- AXIAL VECTOR MESONS; BARYONS; BOSONS; CONSTRUCTIVE FIELD THEORY; DELTA BARYONS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; MASS; MATHEMATICAL OPERATORS; MESONS; N*BARYONS; PARTICLE PROPERTIES; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUANTUM OPERATORS; SIMULATION; SPECTRA; VARIATIONS; VECTOR MESONS