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The Chromo-Dielectric Soliton Model: Quark Self Energy and Hadron Bags | | L. Wilets
; S. Hartmann
; P. Tang
; | | Date: |
12 Aug 1996 | | Journal: | Phys.Rev. C55 (1997) 2067-2077 | | Subject: | nucl-th hep-ph | | Affiliation: | Seattle), S. Hartmann (Munich) and P. Tang (Beijing | | Abstract: | The chromo-dielectric soliton model (CDM) is Lorentz- and chirally-invariant. It has been demonstrated to exhibit dynamical chiral symmetry breaking and spatial confinement in the locally uniform approximation. We here study the full nonlocal quark self energy in a color-dielectric medium modeled by a two parameter Fermi function. Here color confinement is manifest. The self energy thus obtained is used to calculate quark wave functions in the medium which, in turn, are used to calculate the nucleon and pion masses in the one gluon exchange approximation. The nucleon mass is fixed to its empirical value using scaling arguments; the pion mass (for massless current quarks) turns out to be small but non-zero, depending on the model parameters. | | Source: | arXiv, nucl-th/9608018 | | Services: | Forum | Review | PDF | Favorites | |
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