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Meson Nonet State Of Qualitative Analysis

Posted on:2006-02-04Degree:MasterType:Thesis
Country:ChinaCandidate:X C FengFull Text:PDF
GTID:2190360155469482Subject:Particle Physics and Nuclear Physics
Abstract/Summary:PDF Full Text Request
In this paper, the classification of elementary particles and the theory of SU(3) are reviewed. In addition, we introduce the current status of the light meson spectroscopy and the new hadronic states lying beyond the quark model (glueballs and hybrids). Our paper is organized as follows: l)In the quarkonium-quarkonium mixing scheme, we predict the mass of isoscalar of the 31S0 nonet(1900±12MeV). At the same time, due to 21S0, 31S0 are the radical excitations of 11S0,we can use Regge trajectory on the (n,M2)-plane with the approximate same slope to describe the mass of isoscalar of 31S0 nonet (1926MeV). The two results derive from different ways are approximate. 2) The mass of the isodoublet of 23S1 nonet is analyzed in the quarkonium-quarkonium mixing scheme, the results (1584±16.7MeV) is far from the K*(1410)(1414±15MeV). 3) Based on "glueball dominance" picture, we establish glueball-meson mass relations. For the 2++ glueball mass and 4++ glueball mass used as input parameters, these relations predict the mass of isoscalar of 13F4(4++)(2076±19.66MeV). The results is inconsistent with thefJ(2220) (2231.1 ± 1.5MeV ).
Keywords/Search Tags:glueball, nonet, Regge trajectory
PDF Full Text Request
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