8–12 Aug 2022
America/Toronto timezone

Cosmic-ray Neutrino Boosted Dark Matter (νBDM)

9 Aug 2022, 15:00
20m
Parallel Talk Dark Matter Dark Matter

Speaker

Prof. Jong-Chul Park (Chungnam National University)

Description

We propose a novel mechanism of boosting dark matter by cosmic-ray neutrinos. The new mechanism is so significant that the arriving flux of cosmic-ray neutrino boosted dark matter (νBDM) lighter than O(1) MeV on Earth substantially larger than the one of the cosmic-ray electron boosted dark matter. Therefore, νBDM can dominantly contribute in direct detection experiments. We derive conservative but still stringent bounds and future sensitivity limits for νBDM from advanced underground dark matter and neutrino experiments such as XENON1T/nT, LZ, Borexino, and JUNO.

Primary author

Prof. Jong-Chul Park (Chungnam National University)

Co-authors

Mr Yongsoo Jho (Yonsei University) Prof. Seong Chan Park (Yonsei University) Prof. Po-Yen Tseng (National Tsing Hua University)

Presentation materials