منابع مشابه
Light Baryons in a Constituent Quark Model with Chiral Dynamics
It is shown from rigorous three-body Faddeev calculations that the masses of all 14 lowest states in the N and ∆ spectra can be described within a constituent quark model with a Goldstone-boson-exchange interaction plus linear confinement between the constituent quarks. PACS numbers 12.39.-x, 12.38.Lg, 12. 40.Yx, 14.20.Gk Submitted to Physics Letters B Preprint UNIGRAZ-UTP 27-01-96
متن کاملThe quark distributions of baryons
The nucleons were considered as point-like particles when they were first isolated in the 30’s and later on they were found to have extended structure in the 50’s. The quark model suggested the nucleons as composite systems of more basic constituents of quarks and the lepton nucleon deep elastic scattering experiments in the latter 60’s confirmed the quarkparton structure of nucleons and led to...
متن کاملLight Quark Spin-Flavor Symmetry for Baryons Containing a Heavy Quark in Large N QCD
The couplings and interactions of baryons containing a heavy quark are related by light quark spin-flavor symmetry in the large N limit. The single pion coupling constant which determines all heavy quark baryon-pion couplings is equal to the pion coupling constant for light quark baryons. Light quark symmetry relations amongst the baryon couplings are violated at order 1/N. Heavy quark spin-fla...
متن کاملHeavy-quark Baryons as Skyrmions *
I discuss recent development on the description of heavy-quark (such as charmed and bottom) baryons as one or more heavy mesons " wrapped " by a skyrmion. Amazingly enough, such a description naturally arises when light-quark chiral symmetry and heavy-quark spin symmetry are incorporated in an effective Lagrangian. I interpret the resulting spectrum in terms of nonabelian induced (Berry) potent...
متن کاملMulti-quark Components in Baryons
A brief review on some recent progresses in our understanding of multi-quark components in baryons is presented. The multi-quark components in baryons seem to be mainly in colored quark cluster configurations rather than in " meson cloud " configurations or in the form of a sea of quark-antiquark pairs. The colored quark cluster multi-quark picture gives a natural explanation of empirical indic...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics E
سال: 1992
ISSN: 0218-3013,1793-6608
DOI: 10.1142/s0218301392000230