Dynamical generation of scalar mesons

Abstract

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$$B-S$$ B - S transition form-factors with the light-cone QCD sum rules

“…A prospective picture suggests that the scalar mesons above 1 GeV can be assign to be a conventionalqq nonet with some possible glue components, while the scalar mesons below 1 GeV form an exotic [qq]3[qq] 3 nonet with substantial mixings with the qq states, meson-meson states and glueballs [1]. In the hadronic dressing mechanism, the scalar mesons below 1 GeV have smallqq cores of typicalqq meson size, strong couplings to the intermediate hadronic states enrich the pureqq states with other components and spend part of their lifetime as virtual meson-meson states [2]. All the existing pictures have both advantages and shortcomings in one way or another.…”

Diquark Correlations in Baryons: The Interacting Quark Diquark Model

“…A similar approach was developed by Pennington in Ref. [68], where they have investigated the dynamical generation of the scalar mesons by initially inserting only one "bare seed". Also, the strangeness content of the nucleon and electromagnetic form factors were investigated in [70], whereas Capstick and Morel in Ref.…”

Hadron Spectroscopy in the Unquenched Quark Model

“…A similar approach was developed by Boglione and Pennington in Ref. [16], in which they investigated the dynamical generation of the scalar mesons by initially inserting only one "bare seed". On the other hand, Isgur and coworkers in Ref.…”