Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-12-11
Phys.Rev.Lett. 80 (1998) 3000-3003
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 2 figures
Scientific paper
10.1103/PhysRevLett.80.3000
The issue of gauge unification in the (non-supersymmetric) Standard Model is reinvestigated. It is found that with just an additional fourth generation of non-sequential and long-lived quarks and leptons, SU(3)xSU(2)xU(1) gauge couplings converge to a common point of approximately 3.5x10^{15} GeV (corresponding to a proton lifetime of approximately 10^{34 plus/minus 1} years). This result is due to the non-negligible- but still perturbative- contributions of the top and fourth generation Yukawa couplings to the gauge two-loop beta functions, in contrast with the three generation case where such a contribution is too small to play an important role in unification.
No associations
LandOfFree
Minimal SU(5) Resuscitated by Long-Lived Quarks and Leptons 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 Minimal SU(5) Resuscitated by Long-Lived Quarks and Leptons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Minimal SU(5) Resuscitated by Long-Lived Quarks and Leptons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-527312