- Title题目 Constraining light dark matter from boosted and Migdal effects
- Speaker报告人 武雷 南京师大物理学院
- Date日期 2021年7月20日 10:30
- Venue地点 6620
Given the current strong constraints on WIMPs, search for sub-GeV Dark Matter (DM) now is an essential task in direct detections. In order to overcome the limitation of low recoils, enhancing ionization rate of electron from Migdal effect and modifying the velocity distribution of DM from interaction of DM and cosmic rays are two important ways. In this work, we find that these two ways are complementary to probe sub-GeV DM. The former can cover heavier DM, while the latter can cover the lighter DM. Both of them can cover DM with a mass of 20 MeV to 200 MeV. Including momentum transfer effect can greatly improve the existing bounds.