The NUMEN Project @ LNS: Status and Perspectives


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Cappuzzello F., Agodi C., Acosta L., Amador-Valenzuela P., Auerbach N., Barea J., ...Daha Fazla

Meeting on Symmetries and Order - Algebraic Methods in Many-Body Systems, Connecticut, Amerika Birleşik Devletleri, 5 - 06 Ekim 2018, cilt.2150 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 2150
  • Doi Numarası: 10.1063/1.5124592
  • Basıldığı Şehir: Connecticut
  • Basıldığı Ülke: Amerika Birleşik Devletleri

Özet

The NUMEN project aims at accessing experimentally driven information on Nuclear Matrix Elements (NME) involved in the half-life of the neutrinoless double beta decay (0 nu beta beta), by high-accuracy measurements of the cross sections of Heavy Ion (HI) induced Double Charge Exchange (DCE) reactions. Particular interest is given to the (O-18,Ne-18) and (Ne-20,O-20) reactions as tools for beta(+)beta(+) and beta(-)beta(-) decays, respectively. First evidence about the possibility to get quantitative information about NME from experiments is found for both kind of reactions. In the experiments, performed at INFN-Laboratory Nazionali del Sud (LNS) in Catania, the beams are accelerated by the Superconducting Cyclotron (CS) and the reaction products are detected by the MAGNEX magnetic spectrometer. The measured cross sections are challengingly low, limiting the present exploration to few selected isotopes of interest in the context of typically low-yield experimental runs. A major upgrade of the LNS facility is foreseen in order to significantly increase the experimental yield, thus making feasible a systematic study of all the cases of interest. Frontiers technologies are going to be developed, to this purpose, for the accelerator and the detection systems. In parallel, advanced theoretical models are developed aiming at extracting the nuclear structure information from the measured cross sections.