Published July 11, 2006 | Version v1
Journal article Metadata-only

Meson-Meson and Meson-Baryon Interactions in Lattice QCD

Creators

  • 1. RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  • 2. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)
  • 3. Department of Physics, Kyoto University, Kitashirakawaoiwake, Kyoto 606-8502 (Japan)

Description

We study the meson-meson and meson-baryon interactions in lattice QCD. The simulation is performed on 203 x 24 lattice at β = 5 7 using Wilson gauge action and Wilson fermion at the quenched level. By adopting one static quark for each hadron as 'heavy-light meson' and 'heavy-light-light baryon', we define the distance r of two hadrons and extract the inter-hadron potential from the energy difference of the two-particle state and its asymptotic state. We find that both of the meson-meson and meson-baryon potentials are nontrivially weak for the whole range of 0 2fm ∼ r ∼ 0 8fm. The effect of including/excluding the quark-exchange diagrams is found to be marginal

Additional details

Identifiers

DOI
10.1063/1.2220239;
arXiv
arXiv:hep-lat/0601008v1;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
842
Journal Issue
1
Journal Page Range
p. 246-248
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
17. international conference on particles and nuclei
Dates
23-30 Oct 2005
Place
Santa Fe, NM (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38041289
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COMPUTERIZED SIMULATION; FEYNMAN DIAGRAM; LATTICE FIELD THEORY; MESON-BARYON INTERACTIONS; MESON-MESON INTERACTIONS; POTENTIALS; QUANTUM CHROMODYNAMICS; QUARKS
Descriptors DEC
CONSTRUCTIVE FIELD THEORY; DIAGRAMS; FERMIONS; FIELD THEORIES; HADRON-HADRON INTERACTIONS; INFORMATION; INTERACTIONS; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY; SIMULATION

Optional Information

Notes
(c) 2006 American Institute of Physics