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QCD hamiltonian approach for the glueball spectrum

โœ Scribed by Stephen R. Cotanch; Adam P. Szczepaniak; Eric S. Swanson; Chueng-Ryong Ji

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
233 KB
Volume
631
Category
Article
ISSN
0375-9474

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โœฆ Synopsis

A new, comprehensive relativistic many-body approach utilizing the Coulomb gauge QCD Hamiltonian is advanced for hadron physics. The formalism properly incoporates renormaiization for regularizing divergences and also manifests the Nambu-Goldstone realization of chiral symmetry. Using standard many-body techniques, calculations for the constitutuent quark, gluon condensates and masses and gluon spectrum are found to be in good agreement with QCD sum-rules and quenched lattice gauge results.

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โœ F.X. Gadรฉa; A.V. Zaitsevskii ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 454 KB

The variational intermediate Hamiltonian approach is developed on the basis of the quasi-Rayleigh-Schrijdinger quasidegenerate perturbation theory. The results of test applications to ab initio calculations of molecular excited states are discussed. The new approach is able to produce rapidly and mo