Gauss-Bonnet Term on Vacuum Decay

Simple item page
dc.creatorCai, Rong-Gen
dc.creatorHu, Bin
dc.creatorKoh, Seoktae
dc.date2008-06-16
dc.date2008-11-20
dc.date.accessioned2026-07-07T12:30:09Z
dc.date.available2026-07-07T12:30:09Z
dc.descriptionWe study the effect of the Gauss-Bonnet term on vacuum decay process in the Coleman-De Luccia formalism. The Gauss-Bonnet term has an exponential coupling with the real scalar field, which appears in the low energy effective action of string theories. We calculate numerically the instanton solution, which describes the process of vacuum decay, and obtain the critical size of bubble. We find that the Gauss-Bonnet term has a nontrivial effect on the false vacuum decay, depending on the Gauss-Bonnet coefficient.
dc.description18 pages, 7 figures, references added, 2 figures replacement, discussion about thin-wall approximation revised, to appear in PHYS. LETT. B
dc.identifierhttps://arxiv.org/abs/0806.2508
dc.identifierhttp://arxiv.org/abs/0806.2508
dc.identifierPhys.Lett.B671:181-186,2009
dc.identifierdoi:10.1016/j.physletb.2008.11.053
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216051
dc.subjectHigh Energy Physics - Theory
dc.titleGauss-Bonnet Term on Vacuum Decay
dc.typetext

Files

Collections

arXiv