Abstract
As has long been known, it is energetically favorable for massive fermions to deform the homogeneous vacuum around them, giving rise to extended bag-like objects. We study this phenomenon non-perturbatively in a model field theory, the 1 + 1 dimensional Massive Gross-Neveu model, in the large N limit. We prove that the bags in this model are necessarily time dependent. We calculate their masses variationally and demonstrate their stability. We find a non-analytic behavior in these masses as we approach the standard massless Gross-Neveu model and argue that this behavior is caused by the kink-antikink threshold. This work extends our previous work to a non-integrable field theory.
| Original language | English |
|---|---|
| Pages (from-to) | 134-140 |
| Number of pages | 7 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 411 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - 9 Oct 1997 |
| Externally published | Yes |
Bibliographical note
Funding Information:We are grateful to Mark Srednicki for indispensable help in carrying out the numerical work behind the figures. This work was partly supportedb y the National Science Foundation under Grant No. PHY89-04035.
ASJC Scopus subject areas
- Nuclear and High Energy Physics