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Twisted supersymmetry and the topology of theory space
Nima Arkani-Hamed, Andrew G. Cohen, Howard Georgi
We present examples of four dimensional, non-supersymmetric field theories in which ultraviolet supersymmetry breaking effects, such as bose-fermi splittings and the vacuum energy,…
Accelerated Unification
Nima Arkani-Hamed, Andrew Cohen, Howard Georgi
We construct four dimensional gauge theories in which the successful supersymmetric unification of gauge couplings is preserved but accelerated by N-fold replication of the MSSM ga…
Electroweak symmetry breaking from dimensional deconstruction
Nima Arkani-Hamed, Andrew G. Cohen, Howard Georgi
We propose a new class of four-dimensional theories for natural electroweak symmetry breaking, relying neither on supersymmetry nor on strong dynamics at the TeV scale. The new TeV…
(De)Constructing Dimensions
Nima Arkani-Hamed, Andrew G. Cohen, Howard Georgi
We construct renormalizable, asymptotically free, four dimensional gauge theories that dynamically generate a fifth dimension.
Anomalies on Orbifolds
Nima Arkani-Hamed, Andrew G. Cohen, Howard Georgi
We discuss the form of the chiral anomaly on an S1/Z2 orbifold with chiral boundary conditions. We find that the 4-divergence of the higher-dimensional current evaluated at a given…
Brane Couplings from Bulk Loops
Howard Georgi, Aaron K. Grant, Girma Hailu
We compute loop corrections to the effective action of a field theory on a five-dimensional orbifold. We find that the quantum loop effects of interactions in the bulk pr…