DM relic abundance via multi-Higgs production in the early universe

Not scheduled
20m
seminar hall (Building 3)

seminar hall

Building 3

KEK, Tsukuba campus

Speaker

Seishi Enomoto

Description

It is widely believed that parameter space for Higgs-portal dark matter which achieves the relic abundance through the thermal freeze-out is already tightly constrained. In this talk, we propose a novel scenario that the multiple Higgs production dramatically change this picture. As a result, the relic abundance of DM can be achieved by heavy Higgs-portal DM of mχO(1) TeV in the same way with those for usually considered weakly interacting massive particle models.

Presentation materials