DMRadio-m<sup>3</sup>: QCD axion detection at low masses
ORAL
Abstract
As a proposed solution to the strong CP problem and a compelling candidate for dark matter, the axion is a particle that could have a wide range of possible masses. The DMRadio program searches for low-mass axions using lumped-element haloscopes. Specifically, DMRadio-m3 will be the first time an experiment probes KSVZ and DFSZ sensitivities in its mass range.
DMRadio-m3 employs a solenoid magnet which converts axions into an effective current which is inductively coupled to exchangeable coaxial pickup structures. These pickup structures collectively cover the target frequencies of 10 - 200 MHz. This system is cooled down with a dilution fridge and uses SQUIDs for its first amplifiers, housed in a low magnetic field region.
In this talk, I will provide an overview of the experiment design and proposed schedule for operation.
DMRadio-m3 employs a solenoid magnet which converts axions into an effective current which is inductively coupled to exchangeable coaxial pickup structures. These pickup structures collectively cover the target frequencies of 10 - 200 MHz. This system is cooled down with a dilution fridge and uses SQUIDs for its first amplifiers, housed in a low magnetic field region.
In this talk, I will provide an overview of the experiment design and proposed schedule for operation.
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Publication: A. AlShirawi et al., "Electromagnetic modeling and science reach of DMRadio-m3", arXiv:2302.14084<br>L. Brouwer et al., "DMRadio-m3: A Search for the QCD Axion Below 1 µeV", Phys.Rev.D 106 (2022) 10, 103008, arXiv:2204.13781
Presenters
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Andrew K. Yi
SLAC National Accelerator Laboratory
Authors
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Andrew K. Yi
SLAC National Accelerator Laboratory