Friday, July 12, 2013

1305.1611 (Jason Kumar et al.)

Matrix element analyses of dark matter scattering and annihilation    [PDF]

Jason Kumar, Danny Marfatia
We provide a compendium of results at the level of matrix elements for a systematic study of dark matter scattering and annihilation. We identify interactions that yield spin-dependent and spin-independent scattering and specify whether the interactions are velocity- and/or momentum-suppressed. We identify the interactions that lead to s-wave or p-wave annihilation, and those that are chirality-suppressed. We also list the interaction structures that can interfere in scattering and annihilation processes. Using these results, we point out situations in which deviations from the standard lore are obtained.
View original: http://arxiv.org/abs/1305.1611

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