Modified MIT Bag Models: Thermodynamical consistency, stability windows and symmetry group [CL]

http://arxiv.org/abs/2005.13136


In this work we study different variations of the MIT bag model. We start with the so called non-ideal bag model and discuss it in detail. Then we implement a vector interaction in the MIT bag model that simulates a meson exchange interaction and fix the quark-meson coupling constants via symmetry group theory. At the end we propose an original model, inspired by the Boguta-Bodmer models, which allows us to control the repulsion interaction at high densities. For each version of the model we obtain a stability window as predicted by the Bodmer-Witten conjecture and discuss its thermodynamical consistency.

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L. Lopes, C. Biesdorf and D. Menezes
Thu, 28 May 20
25/55

Comments: 12 pages, 9 figures