Updated Constraints and Future Prospects on Majoron Dark Matter

開催日時

2023/6/27(火)11:00〜12:00

開催場所

オンライン(Zoom)

講演者

新穂みちる(お茶の水女子大学)

言語

English

詳細ページ

お問い合わせ

濱田佑/yuhamada-AT-post.kek.jp


概要

Majorons are (pseudo-)Nambu-Goldstone bosons associated with lepton number symmetry breaking due to the Majorana mass term of neutrinos introduced in the seesaw mechanism. They are good dark matter candidates since their lifetime is suppressed by the lepton number breaking scale. We update constraints and discuss future prospects on majoron dark matter in the singlet majoron models based on neutrino, gamma-ray, and cosmic-ray telescopes in the mass region of MeV-10 TeV.