Speaker
Seishi Enomoto
(Kyushu Sangyo University)
Description
In this talk, we propose a new Higgs-portal dark matter scenario considering the Higgsplosion effect, which is a hypothesis of the significant production rate of high multiplicity of Higgs particles at high $\sqrt{s}$. Our scenario allows heavy Higgs-portal dark matter of $m_\chi\gtrsim{\cal O}(1)$ TeV, while the typical scenario indicates the order of ${\cal O}(10-100)$ GeV. We show that the multiplicity can be as large as ${\cal O}(200)$ for the parameters of the Standard Model Higgs, independently of the kinematics of the particle production process. Our result is applicable to a wider class of models with other scalar fields, opening a new window for heavy DM.
Primary authors
Dr
Kohta Murase
(The Pennsylvania State University)
Masato YAMANAKA
(Shikoku gakuin univ.)
Dr
Nagisa Hiroshima
(Yokohama National University)
Seishi Enomoto
(Kyushu Sangyo University)
