馬約子暗物質(衰變)與結構形成

馬約子暗物質(衰變)與結構形成


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

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此活動由香港中文大學物理系主辦。