Nuclear force in Lattice QCD

Journal Article · Tue Jul 11 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2220240· OSTI ID:20873280

Takahashi, Toru T ^[1]; Doi, Takumi ^[2]; Suganuma, Hideo ^[3]

---

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

We perform the quenched lattice QCD analysis on the nuclear force (baryon-baryon interactions). We employ 203 x 24 lattice at {beta} = 5.7 (a {approx_equal} 0.19 fm) with the standard gauge action and the Wilson quark action with the hopping parameters {kappa} = 0.1600, 0.1625, 0.1650, and generate about 200 gauge configurations. We measure the temporal correlators of the two-baryon system which consists of heavy-light-light quarks. We extract the inter-baryon force as a function of the relative distance r. We also evaluate the contribution to the nuclear force from each 'Feynman diagram' such as the quark-exchange diagram individually, and single out the roles of Pauli-blocking effects or quark exchanges in the inter-baryon interactions.

• OSTI ID: 20873280
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 842; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACTION INTEGRAL
BARYON-BARYON INTERACTIONS
D QUARKS
DISTANCE
FEYNMAN DIAGRAM
LATTICE FIELD THEORY
NUCLEAR FORCES
QUANTUM CHROMODYNAMICS
U QUARKS