Speaker
Prof.
R. Sekhar Chivukula
(UC San Diego)
Description
The scattering amplitude for massive spin-2 particles at high energies suffers from growth proportional to energy to the tenth power. In this talk we discuss the origin of this bad high-energy behavior, how it must necessarily be mitigated in the case where the massive modes arise from a compactified theory of gravity, and we outline how the cancellations necessary to reduce this growth to energy-squared arise in compactified five-dimensional theories of gravity. We give a physical interpretation of these results, and we compare with the parallel case of massive spin-1 particle scattering in compactified five-dimensional gauge theories.
Author
Prof.
R. Sekhar Chivukula
(UC San Diego)
