Gauge coupling and fermion mass relations in low string scale brane models

Details Gauge coupling and fermion mass relations in low string scale brane models Gauge coupling and fermion mass relations in low string scale brane models

2005-08-10

arxiv.org/abs/hep-ph/0508120v1

Eur.Phys.J.C45:241-247,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 3 figures

Scientific paper

10.1140/epjc/s2005-02411-x

We analyze the gauge coupling evolution in brane inspired models with $U(3) \times U(2) \times U(1)^N$ symmetry at the string scale. We restrict to the case of brane configurations with two and three abelian factors (N=2,3) and where only one Higgs doublet is coupled to down quarks and leptons and only one to the up quarks. We find that the correct hypercharge assignment of the Standard Model particles is reproduced for six viable models distinguished by different brane configurations. We investigate the third generation fermion mass relations and find that the correct low energy $m_b/m_{\tau}$ ratio can be obtained for $b-\tau$ Yukawa coupling equality at a string scale as low as $M_S \sim 10^3$ TeV.

Affiliated with

Also associated with

No associations

Rating

Gauge coupling and fermion mass relations in low string scale brane models 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 Gauge coupling and fermion mass relations in low string scale brane models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gauge coupling and fermion mass relations in low string scale brane models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-322217