In this work we report the realization of the first low-threshold cryogenic detector that uses diamond as absorber for astroparticle physics applications. We tested two 0.175g CVD diamond samples, each instrumented with a W-TES. The sensors showed transitions at about 25 mK. We present the performance of the diamond detectors and we highlight the best performing one, where we obtained an energy threshold as low as 16.8 eV. This promising result lays the foundation for the use of diamond for different fields of applications where low threshold and excellent energy resolution are required, as i.e. light dark matter searches and BSM physics with coherent elastic neutrino nucleus scattering.
@article{arxiv.2203.11999,
title = {A low-threshold diamond cryogenic detector for sub-GeV Dark Matter searches},
author = {A. H. Abdelhameed and G. Angloher and A. Bento and E. Bertoldo and A. Bertolini and L. Canonica and N. Ferreiro Iachellini and D. Fuchs and A. Garai and D. Hauff and A. Nilima and M. Mancuso and F. Petricca and F. Pröbst and F. Pucci and J. Rothe},
journal= {arXiv preprint arXiv:2203.11999},
year = {2022}
}