| Issue |
EPJ Web Conf.
Volume 319, 2025
RICAP-24, 9th Roma International Conference on Astroparticle Physics
|
|
|---|---|---|
| Article Number | 10003 | |
| Number of page(s) | 5 | |
| Section | Parallel Session: Direct Dark Matter Detection | |
| DOI | https://doi.org/10.1051/epjconf/202531910003 | |
| Published online | 06 March 2025 | |
https://doi.org/10.1051/epjconf/202531910003
Study of Dark Matter with directionality approach using ZnWO4 crystal scintillators
1 Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome, Italy
2 INFN, sezione di Roma “Tor Vergata”, I-00133 Rome, Italy
3 Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine
4 Nikolaev Institute of Inorganic Chemistry, 630090 Novosibirsk, Russia
5 CML Ltd, 630090 Novosibirsk, Russia
6 INFN, sezione di Roma, I-00185 Rome, Italy
7 Dipartimento di Fisica, Università di Roma “La Sapienza”, I-00185 Rome, Italy
8 ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
9 Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine
10 INFN, Laboratorio Nazionale del Gran Sasso, 67100 L’Aquila, Italy
* e-mail: alice.leoncini@roma2.infn.it
Published online: 6 March 2025
Low-background anisotropic scintillators represents an innovative approach to study the presence, in the galactic halo, of those Dark Matter (DM) candidate particles able to induce just nuclear recoils, by exploiting the directionality approach. ZnWO4 crystal scintillators are particularly well-suited for such investigations, since the light output and scintillation pulse shape vary depending on the angle of incidence of heavy particles (e.g., α particles and nuclear recoils) relative to the crystal axes. Due to this anisotropic behavior, a signal induced by those DM candidates can be investigated in two independent modes: studying the directionality variation both of the signal rate and of the pulse shape discrimination from the γ/β radiation (that does not give rise to any anisotropic effects). Additionally, the detector’s sensitivity spans a wide range of DM masses, attributed to the differing atomic masses of its target nuclei (Zn, W, and O). Building on these characteristics, the ADAMO project carried out new studies to examine the anisotropic response of ZnWO4 scintillators to α particles and nuclear recoils induced by neutron scattering. A summary of these investigations are presented in this paper.
Publisher note: Following the publication of the Corrigendum, the article has been corrected on April 4, 2025.
© The Authors, published by EDP Sciences, 2025
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