Speaker
Kirtimaan Mohan
Description
Interactions of Dark Matter with the Standard Model may be mediated through gravitons alone. While this coupling is Planck suppressed in 4 dimensions, in extra dimensional models the coupling can be large and dark matter can be wimp like. Calculating amplitudes for the annihilation of Dark Matter to a tower of massive spin-2 particles in such models is challenging. As a first step, we examine the behavior of amplitudes in a warped extra dimensional model, derive sum rules to show how the apparent bad high energy behavior is curbed and discuss implications for unitarity in such models.
Author
Co-authors
R. Sekhar Chivukula
(UC San Diego)
Elizabeth Simmons
(University of California, San Diego)
Dipan Sengupta
(UC San Diego)
Dennis Foren
(Michigan State University)
