UCLA Dark Matter 2023

Search for dark matter axion with TASEH

1 Apr 2023, 11:30

15m

PAB- 1-425 (UCLA)

Talk Non-directional direct dark matter detection SESSION 18: Direct detection: Light DM & Ultra-Light DM (Axions, ALPs, WISPs) searches-2 (CHAIR: Sebastian Baum- Stanford University)

Speaker

Yung-Fu Chen (National Central University)

Description

TASEH (Taiwan Axion Search Experiment with Haloscope) devotes to search dark matter axions based on a haloscope setup, consisting of a frequency-tunable microwave cavity detector in a strong magnetic field and a readout amplification chain. The TASEH experiment targets axion searches in the mass range of 10–25 μeV, roughly corresponding to the frequency band of 2.5–6 GHz. In this presentation, we will describe its first physics search, which excludes values of the axion-photon coupling constant $|g_{a\gamma \gamma }|\gtrsim 8.1\times {10}^{-14}$ GeV${}^{-1}$, a factor of 11 above the KSVZ benchmark model, in the mass range of 19.4687–19.8436 μeV. We will also illustrate our subsequent efforts on improving the detection sensitivity up to the QCD axion-photon coupling limit, including developing a large-volume conic shell-cavity detector and integrating a quantum-limited Josephson parametric amplifier to the readout chain.

Presentation materials

TASEH status v3.pdf