Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-11-06
J.Phys. A39 (2006) 6341-6348
Physics
High Energy Physics
High Energy Physics - Theory
latex, 8 pages, no figures. Talk by JF at QFTEXT05, Barcelona, Sept. 2005
Scientific paper
10.1088/0305-4470/39/21/S26
Formation of fermion bag solitons is an important paradigm in the theory of hadron structure. We report here on our non-perturbative analysis of this phenomenon in the 1+1 dimensional massive Gross-Neveu model, in the large $N$ limit. Our main result is that the extremal static bag configurations are reflectionless, as in the massless Gross-Neveu model. Explicit formulas for the profiles and masses of these solitons are presented. We also present a particular type of self-consistent reflectionless solitons which arise in the massive Nambu-Jona-Lasinio models, in the large-N limit.
Feinberg Joshua
Hillel Shlomi
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