Detecting Light Boson Dark Matter through Conversion into Magnon

Name: Detecting Light Boson Dark Matter through Conversion into Magnon
Start: 2020-05-14T16:00:00+08:00
End: 2020-05-14T17:00:00+08:00
Location: Online seminar

by Dr So Chigusa (KEK)

Thursday 14 May 2020, 16:00 → 17:00 Asia/Shanghai

Zoom: 624053160 (Online seminar)

Zoom: 624053160

Online seminar

Online seminar Meeting room: https://zoom.com.cn/j/624053160 Password: 44847907

Description

Abstract:

Light boson dark matter such as axion or hidden photon can be resonantly converted into a magnon in a magnetic insulator under the magnetic field, which can be detected experimentally. We provide a quantum mechanical formulation for the magnon event rate and show that the result is consistent with that obtained by a classical calculation. Besides, it is pointed out that the experimental setup of the QUAX proposal for the axion detection also works as a detector of hidden photon dark matter. It has good sensitivity in the mass range around 1 meV, which is beyond astrophysical constraints. This talk is based on the work 2001.10666.

Biography:

I received my Ph.D. in Physics from the University of Tokyo in 2020. After completion of my degree I was appointed as a postdoctoral fellow at KEK, which is my current position.