Speaker
Stanford Broadwater
(University of Kentucky)
Description
Models that explain baryogenesis and the dark matter abundance often feature exotic decays of baryons. As in Elor et al. (2019), we minimally extend the Standard Model with a GeV scale dark Majorana fermion $\chi$ and a TeV scale Y scalar with hypercharge of either 2/3 or -1/3. For exotic neutron or hyperon decays, we can constrain quark flavor couplings $|y_{\chi i}y_{jk}|$ to this Y scalar by using energy loss limits in pulsar binaries. We explore the flavor coupling constraints in each ultraviolet completion.
Author
Stanford Broadwater
(University of Kentucky)
Co-authors
Mohammadreza Zakeri
(Eastern Kentucky University)
Susan Gardner
(University of Kentucky)