942 citations · 9.6k across the 137 of their papers we have counts for
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Product Groups, Discrete Symmetries, and Grand Unification
Yael Shadmi
We present GUT models based on an GUT group. These models maintain the main successes of simple-group GUTs but permit simple solutions to the doublet-triplet sp…
String Theory, Unification and Supersymmetry
Michael Dine
One cannot yet point to any firm string prediction. While many approximate string ground states are known with interesting properties, we do not have any argument that one or anoth…
Time Variations in the Scale of Grand Unification
Michael Dine, Yosef Nir, Guy Raz +1
We study the consequences of time variations in the scale of grand unification, , when the Planck scale and the value of the unified coupling at the Planck scale are held fixe…
Product Groups, Discrete Symmetries, and Grand Unification
Michael Dine, Yosef Nir, Yael Shadmi
We study grand unified theories based on an SU(5)xSU(5) gauge group in which the GUT scale, M_{GUT}, is the VEV of an exact or approximate modulus, and in which fast proton decay i…
Brane World Susy Breaking from String/M Theory
Alexey Anisimov, Michael Dine, Michael Graesser +1
String and M-theory realizations of brane world supersymmetry breaking scenarios are considered in which visible sector Standard Model fields are confined on a brane, with hidden s…