Cryogenic characterization of a LiAlO$_{2}$ crystal and new results on spin-dependent dark matter interactions with ordinary matter. (arXiv:2005.02692v2 [physics.ins-det] UPDATED)

Cryogenic characterization of a LiAlO$_{2}$ crystal and new results on spin-dependent dark matter interactions with ordinary matter. (arXiv:2005.02692v2 [physics.ins-det] UPDATED)
<a href="http://arxiv.org/find/physics/1/au:+Abdelhameed_A/0/1/0/all/0/1">A.H. Abdelhameed</a>, <a href="http://arxiv.org/find/physics/1/au:+Angloher_G/0/1/0/all/0/1">G. Angloher</a>, <a href="http://arxiv.org/find/physics/1/au:+Bauer_P/0/1/0/all/0/1">P. Bauer</a>, <a href="http://arxiv.org/find/physics/1/au:+Bento_A/0/1/0/all/0/1">A. Bento</a>, <a href="http://arxiv.org/find/physics/1/au:+Bertoldo_E/0/1/0/all/0/1">E. Bertoldo</a>, <a href="http://arxiv.org/find/physics/1/au:+Breier_R/0/1/0/all/0/1">R. Breier</a>, <a href="http://arxiv.org/find/physics/1/au:+Bucci_C/0/1/0/all/0/1">C. Bucci</a>, <a href="http://arxiv.org/find/physics/1/au:+Canonica_L/0/1/0/all/0/1">L. Canonica</a>, <a href="http://arxiv.org/find/physics/1/au:+DAddabbo_A/0/1/0/all/0/1">A. D'Addabbo</a>, <a href="http://arxiv.org/find/physics/1/au:+Lorenzo_S/0/1/0/all/0/1">S. Di Lorenzo</a>, <a href="http://arxiv.org/find/physics/1/au:+Erb_A/0/1/0/all/0/1">A. Erb</a>, <a href="http://arxiv.org/find/physics/1/au:+Feilitzsch_F/0/1/0/all/0/1">F.v. Feilitzsch</a>, <a href="http://arxiv.org/find/physics/1/au:+Iachellini_N/0/1/0/all/0/1">N. Ferreiro Iachellini</a>, <a href="http://arxiv.org/find/physics/1/au:+Fichtinger_S/0/1/0/all/0/1">S. Fichtinger</a>, <a href="http://arxiv.org/find/physics/1/au:+Fuchs_D/0/1/0/all/0/1">D. Fuchs</a>, <a href="http://arxiv.org/find/physics/1/au:+Fuss_A/0/1/0/all/0/1">A. Fuss</a>, <a href="http://arxiv.org/find/physics/1/au:+Ghete_V/0/1/0/all/0/1">V.M. Ghete</a>, <a href="http://arxiv.org/find/physics/1/au:+Garai_A/0/1/0/all/0/1">A. Garai</a>, <a href="http://arxiv.org/find/physics/1/au:+Gorla_P/0/1/0/all/0/1">P. Gorla</a>, <a href="http://arxiv.org/find/physics/1/au:+Hauff_D/0/1/0/all/0/1">D. Hauff</a>, <a href="http://arxiv.org/find/physics/1/au:+Jeskovsky_M/0/1/0/all/0/1">M. Ješkovský</a>, <a href="http://arxiv.org/find/physics/1/au:+Jochum_J/0/1/0/all/0/1">J. Jochum</a>, <a href="http://arxiv.org/find/physics/1/au:+Kaizer_J/0/1/0/all/0/1">J. Kaizer</a>, <a href="http://arxiv.org/find/physics/1/au:+Kaznacheeva_M/0/1/0/all/0/1">M. Kaznacheeva</a>, <a href="http://arxiv.org/find/physics/1/au:+Kinast_A/0/1/0/all/0/1">A. Kinast</a>, <a href="http://arxiv.org/find/physics/1/au:+Kluck_H/0/1/0/all/0/1">H. Kluck</a>, <a href="http://arxiv.org/find/physics/1/au:+Kraus_H/0/1/0/all/0/1">H. Kraus</a>, <a href="http://arxiv.org/find/physics/1/au:+Langenkamper_A/0/1/0/all/0/1">A. Langenkämper</a>, <a href="http://arxiv.org/find/physics/1/au:+Mancuso_M/0/1/0/all/0/1">M. Mancuso</a>, <a href="http://arxiv.org/find/physics/1/au:+Mokina_V/0/1/0/all/0/1">V. Mokina</a>, <a href="http://arxiv.org/find/physics/1/au:+Mondragon_E/0/1/0/all/0/1">E. Mondragon</a>, <a href="http://arxiv.org/find/physics/1/au:+Olmi_M/0/1/0/all/0/1">M. Olmi</a>, <a href="http://arxiv.org/find/physics/1/au:+Ortmann_T/0/1/0/all/0/1">T. 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Willers</a>, <a href="http://arxiv.org/find/physics/1/au:+Zema_V/0/1/0/all/0/1">V. Zema</a>, <a href="http://arxiv.org/find/physics/1/au:+Zeman_J/0/1/0/all/0/1">J. Zeman</a> (The CRESST Collaboration), <a href="http://arxiv.org/find/physics/1/au:+Brutzam_M/0/1/0/all/0/1">M. Brützam</a>, et al. (1 additional author not shown)

In this work, a first cryogenic characterization of a scintillating
LiAlO$_{2}$ single crystal is presented. The results achieved show that this
material holds great potential as a target for direct dark matter search
experiments. Three different detector modules obtained from one crystal grown
at the Leibniz-Institut f”ur Kristallz”uchtung (IKZ) have been tested to
study different properties at cryogenic temperatures. Firstly, two 2.8 g twin
crystals were used to build different detector modules which were operated in
an above-ground laboratory at the Max Planck Institute for Physics (MPP) in
Munich, Germany. The first detector module was used to study the scintillation
properties of LiAlO$_{2}$ at cryogenic temperatures. The second achieved an
energy threshold of (213.02$pm$1.48) eV which allows setting a competitive
limit on the spin-dependent dark matter particle-proton scattering cross
section for dark matter particle masses between 350 MeV/c$^{2}$ and 1.50
GeV/c$^{2}$. Secondly, a detector module with a 373 g LiAlO$_{2}$ crystal as
the main absorber was tested in an underground facility at the Laboratori
Nazionali del Gran Sasso (LNGS): from this measurement it was possible to
determine the radiopurity of the crystal and study the feasibility of using
this material as a neutron flux monitor for low-background experiments.

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