Abstract
Low energy threshold detectors are necessary in many frontier fields of experimental physics. In particular, these are extremely important for probing possible dark matter (DM) candidates. We present a novel detection approach that exploits the energy levels of atoms maintained at cryogenic temperature. We exploit laser-assisted transitions that are triggered by the absorption of the incident particle in the material and lead to the emission of a fluorescent photon or an electron. In this approach, the incident particle will in fact excite the first low-lying energy level that is then up-converted using an opportune narrow-band laser system. Two different detection schemes are thus possible in our active material: one is based on a photon signal while the other takes advantage of high efficiency in-vacuum charge detection.
Highlights
DEMIURGOS CollaborationLow energy threshold detectors are necessary in many frontier fields of experimental physics
An extraordinary result of modern cosmology is that the major part of the mass content of the universe is unknown
This means that when considering the matter present in the universe, only 20% is made of ordinary matter, while almost 80% is composed of non-visible and unknown matter, the so-called dark matter (DM)
Summary
Low energy threshold detectors are necessary in many frontier fields of experimental physics These are extremely important for probing possible dark matter (DM) candidates. We exploit laser-assisted transitions that are triggered by the absorption of the incident particle in the material and lead to the emission of a fluorescent photon or an electron In this approach, the incident particle will excite the first low-lying energy level that is up-converted using an opportune narrow-band laser system. This is an Open Access article published by World Scientific Publishing Company. Further distribution of this work is permitted, provided the original work is properly cited
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