3 papers
hep-ph2003
Heterotic String Optical Unification
John Perkins, Ben Dundee, Richard Obousy +4
The lower limit to string coupling unification in weakly coupled heterotic strings was shown by Kaplunovsky to be around Lambda_H ~ 5 x 10^{17} GeV. In contrast, under the scenario…
hep-ph1999
M-fluences on String Model Building
Gerald B. Cleaver
Common to many classes of three family SU(3)_C x SU(2)_L x U(1)_Y string models are an additional anomalous U(1)_A and numerous, often fractionally charged, exotic particles beyond…
hep-ph1998
Quark Masses and Flat Directions in String Models
Gerald B. Cleaver
I discuss a method for producing a quasi-realistic inter-generational quark mass hierarchy in string models. This approach involves non-Abelian singlet states developing intermedia…