Stability of Q-balls and Catastrophe
| dc.creator | Sakai, Nobuyuki | |
| dc.creator | Sasaki, Misao | |
| dc.date | 2007-12-10 | |
| dc.date | 2008-06-05 | |
| dc.date.accessioned | 2026-07-07T11:39:17Z | |
| dc.date.available | 2026-07-07T11:39:17Z | |
| dc.description | We propose a practical method for analyzing stability of Q-balls for the whole parameter space, which includes the intermediate region between the thin-wall limit and thick-wall limit as well as Q-bubbles (Q-balls in false vacuum), using the catastrophe theory. We apply our method to the two concrete models, $V_3=m^2ϕ^2/2-μϕ^3+λϕ^4$ and $V_4=m^2ϕ^2/2-λϕ^4+ϕ^6/M^2$. We find that $V_3$ and $V_4$ Models fall into {\it fold catastrophe} and {\it cusp catastrophe}, respectively, and their stability structures are quite different from each other. | |
| dc.description | 9 pages, 4 figures, some discussions and references added, to apear in Prog. Theor. Phys | |
| dc.identifier | https://arxiv.org/abs/0712.1450 | |
| dc.identifier | http://arxiv.org/abs/0712.1450 | |
| dc.identifier | Prog.Theor.Phys.119:929-937,2008 | |
| dc.identifier | doi:10.1143/PTP.119.929 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199865 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Stability of Q-balls and Catastrophe | |
| dc.type | text |