Bound H Dibaryon in Flavor SU(3) Limit of Lattice QCD

Journal Article · Fri Apr 22 04:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.162002· OSTI ID:21550317

Inoue, Takashi ^[1]; Ishii, Noriyoshi ^[2]; Aoki, Sinya ^[2]; Doi, Takumi; Sasaki, Kenji ^[3]; Hatsuda, Tetsuo ^[4]; Ikeda, Yoichi ^[5]; Murano, Keiko ^[6]; Nemura, Hidekatsu ^[7]

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1. Nihon University, College of Bioresource Sciences, Fujisawa 252-0880 (Japan)
2. Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8577 (Japan)
3. Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8571 (Japan)
4. Department of Physics, The University of Tokyo, Tokyo 113-0033 (Japan)
5. Nishina Center for Accelerator-Based Science, Institute for Physical and Chemical Research (RIKEN), Wako 351-0198 (Japan)
6. High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801 (Japan)
7. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)

The flavor-singlet H dibaryon, which has strangeness -2 and baryon number 2, is studied by the approach recently developed for the baryon-baryon interactions in lattice QCD. The flavor-singlet central potential is derived from the spatial and imaginary-time dependence of the Nambu-Bethe-Salpeter wave function measured in N{sub f}=3 full QCD simulations with the lattice size of L{approx_equal}2,3,4 fm. The potential is found to be insensitive to the volume, and it leads to a bound H dibaryon with the binding energy of 30-40 MeV for the pseudoscalar meson mass of 673-1015 MeV.

• OSTI ID: 21550317
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 106; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON NUMBER
BARYON-BARYON INTERACTIONS
BARYONS
BETHE-SALPETER EQUATION
BINDING ENERGY
BOSONS
CENTRAL POTENTIAL
COMPOSITE MODELS
DIBARYONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
EQUATIONS
FERMIONS
FIELD THEORIES
FLAVOR MODEL
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MASS
MATHEMATICAL MODELS
MESONS
MEV RANGE
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
POTENTIALS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SIMULATION
STRANGENESS
TIME DEPENDENCE
WAVE FUNCTIONS