Speaker
Dr
Nicolò Crescini
(Univesity of Padua)
Description
We present a proposal to search for QCD axions with mass in the 200 μeV
range, assuming that they make a dominant component of dark matter. Due
to the axion-electron spin coupling, their effect is equivalent to the application of an oscillating rf field with frequency and amplitude fixed by the axion mass and coupling respectively. This equivalent magnetic field would produce spin flips in a magnetic sample placed inside a static magnetic field, which determines the resonant interaction at the Larmor frequency. Spin flips would subsequently emit radio frequency photons that can be detected by a suitable quantum counter in an ultra-cryogenic environment. An updated report of the experimental results will be presented, together with a projection of future improvements to be tested.
Primary author
Dr
Nicolò Crescini
(Univesity of Padua)