Simple hadronic matrix elements with Wilson valence quarks and dynamical staggered fermions at 6/[ital g][sup 2]=5. 6

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.370· OSTI ID:6522220

Bitar, K M; DeGrand, T; Edwards, R; Gottlieb, S; Heller, U M; Kennedy, A D; Kogut, J B; Krasnitz, A; Liu, W; Ogilvie, M C; Renken, R L; Rossi, P; Sinclair, D K; Sugar, R L; Toussaint, D; Wang, K C ^[1]

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1. SCRI; Florida State University; Tallahassee; Florida 32306-4052 (United States) University of Colorado; Boulder; Colorado 80309 (United States) Indiana University; Bloomington; Indiana 47405 (United States) University of Illinois; Urbana; Illinois 61801 (United States) Thinking Machines Corporation; Cambridge; Massachusetts 02139 (United States) Washington University; St. Louis; Missouri 63130 (United States) University of Central Florida; Orlando; Florida 32816 (United States) Argonne National Laboratory; Argonne; Illinois 60439 (United States) University of California; Santa Barbara; California 93106 (United States) University of Arizona; Tucson; Arizona 85721 (United States) University of New South Wales; Kensington; New South Wales 2203 (Australia)

We have measured some simple matrix elements for pseudoscalar and vector mesons made of Wilson valance quarks and staggered sea quarks at [beta]=5.6 at sea quark masses [ital am][sub [ital q]]=0.01 and 0.025. Our measurements include the decay constants of pseudoscalars (including [ital f][sub [ital D]]), the wave function at the origin (or decay constant) of vector mesons, and the calculation of quark masses from current algebra. The effects of sea quarks on the simulations are small. We make comparisons to quenched simulations at similar values of the lattice spacing (1/[ital a][congruent]2 GeV).

• DOE Contract Number: FC05-85ER25000
• OSTI ID: 6522220
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:1; 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-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COMPUTERIZED SIMULATION
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONS
LATTICE FIELD THEORY
MASS
MATRIX ELEMENTS
MESONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
QUARKS
SIMULATION
VECTOR MESONS
WAVE FUNCTIONS