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27 April 2024

» arxiv » 2001.9648

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Measuring nuclear reaction cross sections to extract information on neutrinoless double beta decay
M. Cavallaro ; F. Cappuzzello ; C. Agodi ; L. Acosta ; N. Auerbach ; J. Bellone ; R. Bijker ; D. Bonanno ; D. Bongiovanni ; T. Borello-Lewin ; I. Boztosun ; V. Branchina ; M. P. Bussa ; S. Calabrese ; L. Calabretta ; A. Calanna ; D. Calvo ; D. Carbone ; E.R. Chávez Lomelí ; A. Coban ; M. Colonna ; G. D'Agostino ; G. De Geronimo ; F. Delaunay ; N. Deshmukh ; P.N. de Faria ; C. Ferraresi ; J.L. Ferreira ; P. Finocchiaro ; M. Fisichella ; A. Foti ; G. Gallo ; U. Garcia ; G. Giraudo ; V. Greco ; A. Hacisalihoglu ; J. Kotila ; F. Iazzi ; R. Introzzi ; G. Lanzalone ; A. Lavagno ; F. La Via ; J.A. Lay ; H. Lenske ; R. Linares ; G. Litrico ; F. Longhitano ; D. Lo Presti ; J. Lubian ; N. Medina ; D. R. Mendes ; A. Muoio ; J.R.B. Oliveira ; A. Pakou ; L. Pandola ; H. Petrascu ; F. Pinna ; S. Reito ; D. Rifuggiato ; M.R.D. Rodrigues ; A. D. Russo ; G. Russo ; G. Santagati ; E. Santopinto ; O. Sgouros ; S.O. Solakci ; G. Souliotis ; V. Soukeras ; A. Spatafora ; D. Torresi ; S. Tudisco ; R.I.M. Vsevolodovna ; R.J. Wheadon ; A. Yildirin ; V.A.B. Zagatto ;
Date:	27 Jan 2020
Abstract:	Neutrinoless double beta decay (0v{eta}{eta}) is considered the best potential resource to access the absolute neutrino mass scale. Moreover, if observed, it will signal that neutrinos are their own anti-particles (Majorana particles). Presently, this physics case is one of the most important research "beyond Standard Model" and might guide the way towards a Grand Unified Theory of fundamental interactions. Since the 0v{eta}{eta} decay process involves nuclei, its analysis necessarily implies nuclear structure issues. In the NURE project, supported by a Starting Grant of the European Research Council (ERC), nuclear reactions of double charge-exchange (DCE) are used as a tool to extract information on the 0v{eta}{eta} Nuclear Matrix Elements. In DCE reactions and {eta}{eta} decay indeed the initial and final nuclear states are the same and the transition operators have similar structure. Thus the measurement of the DCE absolute cross-sections can give crucial information on {eta}{eta} matrix elements. In a wider view, the NUMEN international collaboration plans a major upgrade of the INFN-LNS facilities in the next years in order to increase the experimental production of nuclei of at least two orders of magnitude, thus making feasible a systematic study of all the cases of interest as candidates for 0v{eta}{eta}.
Source:	arXiv, 2001.9648
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