Vacuum Instability in Anomaly Mediation Models with Massive Neutrinos

Details Vacuum Instability in Anomaly Mediation Models with Massive Neutrinos Vacuum Instability in Anomaly Mediation Models with Massive Neutrinos

2000-10-12

arxiv.org/abs/hep-ph/0010124v2

Phys.Rev. D63 (2001) 083510

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, One reference and one footnote are added

Scientific paper

10.1103/PhysRevD.63.083510

We study the vacuum stability in the anomaly mediated supersymmetry (SUSY) breaking models with massive neutrinos. It is shown that, because of the seesaw-induced mass terms for neutrinos, the true vacuum has a large negative cosmological constant provided that the vacuum where we now live has an (almost) vanishing cosmological constant. Although the quantum transition into the true vacuum from our false vacuum is highly suppressed, the thermal transition at high temperatures may not be neglected because of the thermal excitations. However, we find that the thermal transition is, in fact, negligibly small and hence the anomaly mediation models are cosmologically safe. Thus, we conclude that the reheating temperature T_R could be very high (e.g. T_R >> 10^10 GeV) in the anomaly mediation models even with the seesaw-induced mass terms for neutrinos.

Affiliated with

Also associated with

No associations

Rating

Vacuum Instability in Anomaly Mediation Models with Massive Neutrinos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Vacuum Instability in Anomaly Mediation Models with Massive Neutrinos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum Instability in Anomaly Mediation Models with Massive Neutrinos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-83844