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 HAL : in2p3-00007225, version 1
 Zeitschrift für Physik C 46 (1990) 323-328
 Double beta decay and SU(4) symmetry
 (1990)
 The amplitude for $\beta\beta$ decay with $2\nu$ emission is shown to be related to (p,n) and (n,p) reactions on the initial and final states, respectively. The suppression of both $\beta\beta$ and (n,p) reaction is connected, and its origin is discussed by referring to the SU(4) symmetry. From present data on the first ones, we estimate the forward (n, p) strength of relevance for the $\beta\beta$ problem. The interest of the experimental determination of this strength is emphasized. Assuming a perturbative breaking of theSU(4) symmetry, results are given for 76Ge, 82Se, 128Te and 130Te.
 Thème(s) : Physique/Physique des Hautes Energies - Théorie
 in2p3-00007225, version 1 http://hal.in2p3.fr/in2p3-00007225 oai:hal.in2p3.fr:in2p3-00007225 Contributeur : Emmanuelle Vernay <> Soumis le : Vendredi 8 Décembre 2000, 11:32:46 Dernière modification le : Mardi 9 Mai 2006, 14:25:42