Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-07-15
Mod.Phys.Lett. A21 (2006) 1151-1160
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages and 3 Figures; Presented at 'Planck 05' conference, ICTP
Scientific paper
10.1142/S0217732306020421
We investigate the requirement of the existence of two degenerate vacua of the effective potential as a function of the Weinberg-Salam Higgs scalar field norm, as suggested by the multiple point principle, in an extension of the Standard Model including see-saw scale physics. Results are presented from an investigation of an extension of the Standard Model to the gauge symmetry group SU(3)_C\times SU(2)_L\times U(1)'\times \tilde U(1), where two groups U(1)' and \tilde U(1) originate at the see-saw scale M_{SS}, when heavy (right-handed) neutrinos appear. The consequent unification of the group SU(3)_C\times SU(2)_L\times U(1)' into the flipped SU(5) at the GUT scale leads to the group SU(5)\times \tilde U(1). We assume the position of the second minimum of the effective potential coincides with the fundamental scale, here taken to be the GUT scale. We solve the renormalization group equations in the one-loop approximation and obtain a top-quark mass of 171\pm 3 GeV and a Higgs mass of 129\pm 4 GeV, in the case when the Yukawa couplings of the neutrinos are less than half that of the top quark at the GUT scale.
Das Ch. R.
Froggatt Colin D.
Laperashvili Larisa V.
Nielsen Holger Bech
No associations
LandOfFree
Flipped SU(5), see-saw scale physics and degenerate vacua 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 Flipped SU(5), see-saw scale physics and degenerate vacua, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flipped SU(5), see-saw scale physics and degenerate vacua will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-411528