Study of Dark Matter with directionality approach using ZnWO4 crystal scintillators

Study of Dark Matter with directionality approach using ZnWO4 crystal scintillators Научная публикация

Журнал

Epj Web of Conferences
ISSN: 2101-6275 , E-ISSN: 2100-014X

Вых. Данные

Год: 2025, Том: 319, Номер: 3, Номер статьи : 10003, Страниц : 5 DOI: 10.1051/epjconf/202531910003

Авторы

Leoncini A. ^1,2 , Belli P. ^1,2 , Bernabei R. ^1,2 , Borovlev Yu.A. ^3,5 , Caracciolo V. ^1,2 , Cerulli R. ^1,2 , Cherubini N. ⁴ , Merlo V. ² , Postupaeva A.G. ⁵ , Shlegel V.N. ³ , at al . ⁶

Организации

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	Nikolaev Institute of Inorganic Chemistry, 630090 Novosibirsk, Russia
4	ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Develop-ment, C.R. Casaccia, 00123, Rome, Italy
5	CML Ltd, 630090 Novosibirsk, Russia
6	CUPID Collaboration

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.

Leoncini A. , Belli P. , Bernabei R. , Borovlev Y.A. , Caracciolo V. , Cerulli R. , Cherubini N. , Merlo V. , Postupaeva A.G. , Shlegel V.N. , at al
Study of Dark Matter with directionality approach using ZnWO4 crystal scintillators
Epj Web of Conferences. 2025. V.319. N3. 10003 :1-5. DOI: 10.1051/epjconf/202531910003 OpenAlex

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W4408205439

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