Radiative corrections and instability of large Q-Balls
| Autor: | A. V. Kovtun, E. Ya. Nugaev |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Coupling constant High Energy Physics - Theory Nuclear and High Energy Physics 010308 nuclear & particles physics Evaporation General Physics and Astronomy FOS: Physical sciences Astronomy and Astrophysics Charge (physics) Fermion 01 natural sciences Stability (probability) Instability High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) Quantum electrodynamics 0103 physical sciences Radiative transfer 010306 general physics |
| DOI: | 10.48550/arxiv.1612.00700 |
| Popis: | We discuss stability of Q-balls interacting with fermions in theory with small coupling constant g. We argue that for configurations with large global U(1)-charge Q the problem of classical stability becomes more subtle. For example, in model with flat direction there is maximal value of charge for stable solutions with Q~1/g^4. We study origin of additional instability and discuss possible ways to avoid it. Comment: 17 pages, 10 figures, referneces added, minor changes in the text |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|