Seminar:- Majoron Dark Matter (Decaying) and Structure Formation
The decaying warm dark matter (DWDM) scenario is well-motivated, emerging in a broad class of particle physics theories where neutrino masses arise from the spontaneous breaking of a continuous global lepton number symmetry. The majoron arises as a Nambu-Goldstone boson. The majoron necessarily decays to neutrinos, with an amplitude proportional to their tiny mass, which typically gives it cosmologically long lifetimes. Using N-body simulations we show that our DWDM picture leads to a viable alternative to the ΛCDM scenario, with predictions that can differ substantially on small scales.
時間：2019.06.12(三) 14:30~15:15
地點：香港中文大學 科學館北座G25室
講者：張敬民 教授 Prof. King-man CHEUNG(台灣國立清華大學物理系)
語言：英語
免費會議，歡迎參加
此活動由香港中文大學物理系主辦。
