String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model

Details String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model

1997-09-08

arxiv.org/abs/hep-ph/9709279v3

Phys.Lett. B419 (1998) 199-205

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 13pages, 3 figures. Some comments are added. Final version to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(97)01488-3

The string theory predicts the unification of the gauge couplings and gravity. The minimal supersymmetric Standard Model, however, gives the unification scale $\sim 2\times 10^{16}$ GeV which is significantly smaller than the string scale $\sim 5\times 10^{17}$ GeV of the weak coupling heterotic string theory. We study the unification scale of the non-supersymmetric minimal Standard Model quantitatively at the two-loop level. We find that the unification scale should be at most $\sim 4\times 10^{16}$ GeV and the desired Kac-Moody level of the hyper-charge coupling should be $1.33 \lsim \ky \lsim 1.35$ in the absence of significant string threshold effects.

Affiliated with

Also associated with

No associations

Rating

String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model 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 String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-24936