UCLA Dark Matter 2023

Shining Light on Cosmogenic Axions with Neutrino Experiments

Not scheduled

15m

PAB- 1-425 (UCLA)

Talk Axions, Alps, Wisps as dark matter SESSION 9: Dark Matter Theory (CHAIRS: Volodymyr Takhistov- QUP-KEK, Japan, and Edoardo Vitagliano- Hebrew U. of Jerusalem, Israel)

Speaker

Prof. Yanou Cui (University of California, Riverside)

Description

While most searches for cosmic axions so far focused on their cold relics as (a component of) dark matter, various well-motivated cosmological sources can produce ``boosted'' axions that remain relativistic today. In this talk I will demonstrate that existing/upcoming neutrino experiments such as Super-Kamiokande, Hyper-Kamiokande, DUNE, JUNO, and IceCube can probe such energetic axion relics. The characteristic signature is the mono-energetic single photon signal from axion absorption induced by the axion-photon coupling. This proposal offers to cover parameter ranges complementary to existing axion searches and provides new opportunities for discovery with neutrino facilities.