Broadband Solenoidal Haloscope for Terahertz Axion Detection
Authors
Liu, Jesse; Dona, Kristin; Hoshino, Gabe; Knirck, Stefan; Kurinsky, Noah; Malaker, Matthew; Miller, David; Sonnenschein, Andrew; Awida, Mohamed; Barry, Peter; Chang, Clarence; Li, Juliang
Abstract
We introduce the Broadband Reflector Experiment for Axion Detection (BREAD) conceptual designand science program. This haloscope plans to search for bosonic dark matter across the 103; 1 eV ([0.24,24 THz) mass range. BREAD proposes a cylindrical metal barrel to convert dark matter into photons,which a novel parabolic reflector design focuses onto a photosensor. This unique geometry enablesenclosure in standard cryostats and high-field solenoids, overcoming limitations of current dish antennas.A pilot 0.7 m2 barrel experiment planned at Fermilab is projected to surpass existing dark photon couplingconstraints by over a decade with one-day runtime. Axion sensitivity requires < 1020 W= ffiffiffiffiffiffiHz p sensornoise equivalent power with a 10 T solenoid and 10 m2 barrel. We project BREAD sensitivity for varioussensor technologies and discuss future prospects.