منابع مشابه
Anisotropic Lattice Qcd Studies of Penta - Quark Anti - Decuplet ∗
Anti-decuplet penta-quark baryon is studied with the quenched anisotropic lattice QCD for accurate measurement of the correlator. Both the positive and negative parity states are studied using a non-NK type interpolating field with I = 0 and J = 1/2. After the chiral extrapolation, the lowest positive parity state is found at mΘ ≃ 2.25 GeV, which is too massive to be identified with the experim...
متن کاملThe Static Penta-quark Potential in Lattice Qcd∗
We perform the first study for the static penta-quark (5Q) potential in lattice QCD with β=6.0 and 16 × 32 at the quenched level. Accurate results of the 5Q potential are extracted from the 5Q Wilson loop using the smearing method, which enhances the ground-state component. The tetra-quark potential for the QQ-Q̄Q̄ system is also studied in lattice QCD. The multi-quark potentials are found to be ...
متن کاملAnisotropic lattice QCD studies of penta-quarks and tetra-quarks
Anisotropic lattice QCD studies of penta-quarks(5Q) with JP = 1/2± and 3/2± are presented at the quenched level together with tetra-quarks(4Q). The standard gauge action at β = 5.75 and O(a) improved quark (clover) action with κ = 0.1410(0.010)0.1440 are employed on the anisotropic lattice with the renormalized anisotropy as/at = 4. The “hybrid boundary condition(HBC)” is adopted to discriminat...
متن کاملFive-quark picture of Λ(1405) in anisotropic lattice QCD
Noriyoshi Ishii1∗), Takumi Doi2,3, Makoto Oka4, and Hideo Suganuma5 1 Center for Computational Sciences, Univ. of Tsukuba, Tsukuba 305–8577, Japan 2 Dept. of Physics and Astronomy, Univ. of Kentucky, Lexington KY 40506, USA 3 RIKEN BNL Research Center, Brookhaven National Lab., New York 11973, USA 4 Department of Physics, Tokyo Institute of Technology, Tokyo 152–8551, Japan 5 Department of Phyi...
متن کاملQuark Model From Lattice QCD
We study the valence approximation in lattice QCD of hadrons where the cloud quarks and antiquarks are deleted by truncating the backward time propagation (Z graphs) in the connected insertions. Whereas, the sea quarks are eliminated via the quenched approximation and in the disconnected insertions. It is shown that the ratios of isovector to isoscalar matrix elements in the nucleon reproduce t...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2005
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2005.03.057