Array of cryogenic calorimeters to evaluate the spectral shape of forbidden -decays: the ACCESS project

L. Pagnanini; G. Benato; P. Carniti; E. Celi; D. Chiesa; J. Corbett; I. Dafinei; S. Di Domizio; P. Di Stefano; S. Ghislandi; C. Gotti; D. L. Helis; R. Knobel; J. Kostensalo; J. Kotila; S. Nagorny; G. Pessina; S. Pirro; S. Pozzi; A. Puiu; S. Quitadamo; M. Sisti; J.  Suhonen; S. Kuznetsov

doi:10.1140/epjp/s13360-023-03946-x

2024 Impact factor 2.9

EPJ PLUS - Condensed Matter and Complex Systems

Focus Point on Advances in Cryogenic Detectors for Dark Matter, Neutrino Physics and Astrophysics

Open Access

Eur. Phys. J. Plus (2023) 138: 445
https://doi.org/10.1140/epjp/s13360-023-03946-x

Regular Article

Array of cryogenic calorimeters to evaluate the spectral shape of forbidden $β$ $\beta$ -decays: the ACCESS project

L. Pagnanini¹^,2^,3^a, G. Benato¹^,2, P. Carniti⁴^,5, E. Celi¹^,2, D. Chiesa⁴^,5, J. Corbett³, I. Dafinei¹, S. Di Domizio⁶, P. Di Stefano³, S. Ghislandi¹^,2^k, C. Gotti⁵, D. L. Helis¹^,2, R. Knobel³, J. Kostensalo⁷, J. Kotila⁸^,9^,10, S. Nagorny³, G. Pessina⁵, S. Pirro², S. Pozzi⁴^,5, A. Puiu², S. Quitadamo¹^,2, M. Sisti⁵, J. Suhonen⁸, S. Kuznetsov¹¹ and The ACCESS Collaboration

¹ Gran Sasso Science Institute, 67100, L’Aquila, Italy
² INFN–Laboratori Nazionali del Gran Sasso, 67100, Assergi, L’Aquila, Italy
³ Department of Physics, Engineering Physics and Astronomy, Queen’s University, K7L 3N6, Kingston, ON, Canada
⁴ Dipartimento di Fisica, Università di Milano-Bicocca, 20126, Milano, Italy
⁵ INFN–Sezione di Milano Bicocca, 20126, Milano, Italy
⁶ Dipartimento di Fisica, INFN Sezione di Genova, Università di Genova, 16146, Genova, Italy
⁷ Natural Resources Institute Finland, Yliopistokatu 6B, 80100, Joensuu, Finland
⁸ Department of Physics, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland
⁹ Finnish Institute for Educational Research, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland
¹⁰ Sloane Physics Laboratory, Center for Theoretical Physics, Yale University, 06520-8120, New Haven, CT, USA
¹¹ Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilov Str., 119991, Moscow, Russia

^a lorenzo.pagnanini@gssi.it
^k stefano.ghislandi@gssi.it

Received: 21 December 2022
Accepted: 1 April 2023
Published online: 23 May 2023

Abstract

The ACCESS (Array of Cryogenic Calorimeters to Evaluate Spectral Shapes) project aims to establish a novel technique to perform precision measurements of forbidden $β$ $\beta$ -decays, which can serve as an important benchmark for nuclear physics calculations and represent a significant background in astroparticle physics experiments. ACCESS will operate a pilot array of cryogenic calorimeters based on natural and doped crystals containing $β$ $\beta$ -emitting radionuclides. In this way, natural (e.g. $^{113}$ $^{113}$ Cd and $^{115}$ $^{115}$ In) and synthetic isotopes (e.g. $^{99}$ $^{99}$ Tc) will be simultaneously measured with a common experimental technique. The array will also include further crystals optimised to disentangle the different background sources, thus reducing the systematic uncertainty. In this paper, we give an overview of the ACCESS research program, discussing a detector design study and promising results of $^{115}$ $^{115}$ In.

Focus Point on Advances in Cryogenic Detectors for Dark Matter, Neutrino Physics and Astrophysics Guest editor: L. Pattavina.

© The Author(s) 2023

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