Pentaquark in the flux tube model | Zendy

M. Iwasaki | Zendy; Fujio Takagi | Zendy

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Pentaquark in the flux tube model

Author(s) -

M. Iwasaki,

Fujio Takagi

Publication year - 2008

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Language(s) - English

Resource type - Journals

eISSN - 1550-7998

pISSN - 1550-2368

DOI - 10.1103/physrevd.77.054020

Subject(s) - pentaquark , diquark , physics , excited state , wkb approximation , flux tube , flux (metallurgy) , particle physics , energy (signal processing) , atomic physics , state (computer science) , nuclear physics , quark , quantum mechanics , magnetic flux , materials science , magnetic field , metallurgy , algorithm , computer science

We propose a model for pentaquarks in an excited state in the flux tube picture. The pentaquark is assumed to be composed of two diquarks and an antiquark connected by a color flux tube with a junction. If the pentaquark is rotating rapidly, it is polarized into two clusters: one is a diquark and the other is an antiquark plus another diquark. Excited energy of this quasilinear system is calculated with the use of the WKB approximation. It is predicted that there exist quasistable excited pentaquarks: 1690 MeV(3/2{sup +}), 2000 MeV(5/2{sup -}), 2250 MeV(7/2{sup +}) etc., which decay mainly through three-body modes.

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