A search for unvirialized axions in ADMX

The high resolution search for axions in the Axion Dark Matter eXperiment (ADMX) looks for unvirialized axions in a high Q microwave cavity inside the bore of a 8 T solenoid magnet. These unvirialized axions have a velocity dispersion of $\frac{v}{c} = \mathcal{O}(10^{-6}) $. The axion signal undergoes a diurnal and annual modulation due to the Earth’s motion in the galactic plane. Because the data have a frequency resolution of the order of 20 mHz whereas the frequency modulations are around 100 mHz per hour and up to 5 Hz per week, these effects must be considered during the data analysis. The analysis includes various cuts set to identify the triggers and exclude the non-persistent candidates, the identification and removal of the synthetic axion injections, and the investigation of diurnal and annual modulation of axion signal. In this talk, I will present the preliminary results of the run 1B of the ADMX run, which covers a frequency range of 680–800 MHz (axion mass of 2.81–3.31 $\mu$eV).