Center for Theoretical Physics of the Universe (CTPU)

EeV-scale Dark Matter: Production Mechanism and Experimental Signatures

by Dr. Lucien Heurtier (University of Arizona)

Monday, 21 January 2019 from to (Asia/Seoul)
at CTPU Seminar Room
Fourth floor IBS Building, 55, Expo-ro, Yuseong-gu, Daejeon, Korea, 34126

In this talk I will present two models involving a very heavy dark matter candidate of mass as large as the EeV scale. In the first part I will present an original paradigm for producing such a dark-matter candidate in which the only contact between the Standard Model and dark matter is the inflationary sector. I will show that such a framework is strongly constrained by the study of inflationary observables and the presence of an early domination era. Given that such a dark-matter candidate can be produced in the early universe in one way or another, I will then expose the possibility that a heavy dark-matter particle couples to right-handed neutrinos and has some signature in the neutrino sector, interpreting the ANITA anomalous events and IceCube PeV events reported recently as coming from a decay of dark matter in the galaxy.