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M(ore) on Chiral Gauge Theories from D-Branes
J. Lykken, E. Poppitz, S. P. Trivedi
We consider a brane configuration consisting of intersecting Neveu-Schwarz five-branes, Dirichlet four-branes, and an orientifold four-plane in a C^2/Z_3 orbifold background. We sh…
Group-Theoretic Evidence for SO(10) Grand Unification
J. Lykken, T. Montroy, S. Willenbrock
The hypercharges of the fermions are not uniquely determined in SO(10) grand unification, but rather depend upon which linear combination of the two U(1) subgroups of SO(10) > SU(3…
Chiral Gauge Theories from D-Branes
Joseph Lykken, Erich Poppitz, Sandip P. Trivedi
We construct brane configurations leading to chiral four dimensional N=1 supersymmetric gauge theories. The brane realizations consist of intersecting Neveu-Schwarz five-branes and…