RELATIVISTIC QUARK MODEL AND PENTAQUARK SPECTROSCOPY
نویسندگان
چکیده
منابع مشابه
Pentaquark in a Supersmmetric Quark-diquark Model
According to QCD, there exists a broken dynamical supersymmetry between an antiquark and a diquark. This supersymmetry can be used to relate the mass of a pentaquark to the mass of an antibaryon by replacing two antiquarks in an antibaryon by two diquarks to form a pentaquark. Using this technique, we find that the mass of an exotic pentaquark with strangeness plus 1 is greater than 1.74 GeV, o...
متن کاملQuark Model Perspectives on Pentaquark Exotics
A large number of experiments now appear to confirm the existence of the exotic, strangeness +1 θ baryon. The I = 3/2 exotic Ξ3/2 signal observed by NA49 remains to be confirmed (it is not seen by HERA-B, and its compatibility with earlier high statistics Ξ production experiments has also been questioned). Recently, H1 reported evidence for an anti-charmed exotic, though this state was not seen...
متن کاملPentaquark baryons in SU(3) quark model
We study the SU(3) group structure of pentaquark baryons which are made of four quarks and one antiquark. The pentaquark baryons form 1, 8, 10, 10, 27, and 35 multiplets in SU(3) quark model. First, the flavor wave functions of all the pentaquark baryons are constructed in SU(3) quark model and then the flavor SU(3) symmetry relations for the interactions of the pentaquarks with three-quark bar...
متن کاملFlavor Structure of Pentaquark Baryons in Quark Model
The flavor SU(3) group structure of pentaquark baryons which form 1, 8, 10, 10, 27, and 35 multiplets is investigated in quark model. The flavor wave functions of all the pentaquark baryons are constructed in SU(3) quark model and their Yukawa interactions with meson octet are obtained in general and in the special case of the octet-antidecuplet ideal mixing with the OZI rule. The mass sum rule...
متن کاملPentaquark with Diquark Correlations in a Quark Model
We have investigated uudds pentaquarks by employing quark models with the meson exchange and the effective gluon exchange as qq and qq interactions. The system for five quarks is dynamically solved; two quarks are allowed to have a diquark-like qq correlation. It is found that the lowest mass of the pentaquark is about 1947 – 2144 MeV. There are parameter sets where the mass of the lowest posit...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics E
سال: 2003
ISSN: 0218-3013,1793-6608
DOI: 10.1142/s0218301303001582