On the higher-loop effective action in NJL model
S.A.Garnov
TL;DR
This paper calculates the 3-loop effective action and potential in the NJL model, discussing the nature of higher-order contributions and their potential vanishing, providing a general form for these contributions.
Contribution
It presents the first calculation of the 3-loop effective action in the NJL model and analyzes the structure of higher-order contributions.
Findings
3-loop effective action and potential computed
Discussion on vanishing contributions in higher orders
General form of higher-order contributions obtained
Abstract
The 3-loop effective action and effective potential in Nambu - Jona-Lasinio model are calculated. The problem of vanishing contributions in the higher orders is discussed. The general form of such contributions is obtained.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research