3 papers
hep-th2001
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…
quant-ph1999
Tunneling of Bound Systems at Finite Energies: Complex Paths Through Potential Barriers
G. F. Bonini, A. G. Cohen, C. Rebbi +1
We adapt the semiclassical technique, as used in the context of instanton transitions in quantum field theory, to the description of tunneling transmissions at finite energies thro…
astro-ph1997
Scars on the CBR?
A. G. Cohen, A. De Rujula
We ask whether the universe can be a patchwork consisting of distinct regions of matter and antimatter. In previous work we demonstrated that post-recombination matter-antimatter c…