EPJ Web of Conferences (Jan 2021)

Upgrade of the MAGNEX spectrometer toward the high-intensity phase of NUMEN

  • Cavallaro Manuela,
  • Agodi Clementina,
  • Brischetto Giuseppe A.,
  • Calabrese Salvatore,
  • Calvo Daniela,
  • Capirossi Vittoria,
  • Cappuzzello Francesco,
  • Carbone Diana,
  • Ciraldo Irene,
  • Delaunay Franck,
  • Finocchiaro Paolo,
  • Fisichella Maria,
  • Iazzi Felice,
  • Pinna Federico,
  • Sartirana Diego,
  • Spatafora Alessandro,
  • Sgouros Onoufrios,
  • Soukeras Vasilis,
  • Torresi Domenico,
  • Tudisco Salvatore

DOI
https://doi.org/10.1051/epjconf/202125203003
Journal volume & issue
Vol. 252
p. 03003

Abstract

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The NUMEN experimental activity with accelerated beams is performed at INFN–Laboratori Nazionali del Sud (LNS) in Catania using the Superconducting Cyclotron and the MAGNEX magnetic spectrometer. The scientific motivation of NUMEN is to extract experiment-driven information on the nuclear matrix elements entering in the expression of the 0νββ decay half-life. The reaction cross sections involved, especially for the double charge exchange process, are very low, thus limiting the present exploration to a few selected isotopes of interest in the context of typically low-yield experimental runs. In order to make feasible a systematic study of all the candidate nuclei, a major upgrade of the LNS facility is foreseen to increase the experimental yield by more than two orders of magnitude. To this purpose, frontier technologies are being developed for the accelerator and the detection systems. An updated description of the choices derived from the recent R&D activity on the target system and MAGNEX focal plane detector is given.