Archivio Istituzionale della RicercaThe NUMEN (NUclear Matrix Elements for Neutrinoless double beta decay) project at INFN-Laboratori Nazionali del Sud aims to investigate the Nuclear Matrix Elements that govern neutrinoless double beta decay. The strategy is based on measuring double charge exchange reactions with intense heavy-ion beams on candidate isotopes. To cope with the extremely low cross sections, the LNS facility has been upgraded to provide beams up to 1013 pps. A new target system and high-performance detectors for the MAGNEX spectrometer are under development, capable of sustaining ion rates of 5x106 Hz and allowing simultaneous gamma-ray detection. This work provides a status update on the construction of the NUMEN apparatus, discussing recent progress and key experimental challenges.
Experimental challenges and construction status of the NUMEN Project / Pierroutsakou, D., Acosta, L., Added, N., Agodi, C., Aguiar, V.A.P., Amador-Valenzuela, P., Anastasio, A., Auerbach, N., Avanzi, L.H., Ayyad, Y., Babu, R., Babu, Y., Bijker, R., Boiano, A., Boztosun, I., Brasolin, S., Brischetto, G.A., Bussa, M.P., Calvo, D., Cappuzzello, F., et al.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. C, GEOPHYSICS AND SPACE PHYSICS. - ISSN 1826-9885. - ELETTRONICO. - 49:4(2026), pp. 1-8. [10.1393/ncc/i2026-26122-4]
Experimental challenges and construction status of the NUMEN Project
De Benedictis, C.;Ferraresi, C.;Paterna, M.;
2026
Abstract
The NUMEN (NUclear Matrix Elements for Neutrinoless double beta decay) project at INFN-Laboratori Nazionali del Sud aims to investigate the Nuclear Matrix Elements that govern neutrinoless double beta decay. The strategy is based on measuring double charge exchange reactions with intense heavy-ion beams on candidate isotopes. To cope with the extremely low cross sections, the LNS facility has been upgraded to provide beams up to 1013 pps. A new target system and high-performance detectors for the MAGNEX spectrometer are under development, capable of sustaining ion rates of 5x106 Hz and allowing simultaneous gamma-ray detection. This work provides a status update on the construction of the NUMEN apparatus, discussing recent progress and key experimental challenges.
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https://hdl.handle.net/11583/3013388