Proton-neutron pairing, quartet condensation and α− transfer in N=Z nuclei

¹ National Institute of Physics and Nuclear Engineering, 077125 Magurele, Romania
² Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Via S. Sofia 64, 95123 Catania, Italy
³ Florida State University, 311 Keen Building, Tallahassee, FL 32306-4350, USA

^* e-mail: sandulescu@theory.nipne.ro
^** e-mail: michelangelo.sambataro@ct.infn.it
^*** e-mail: avolya@fsu.edu

Published online: 14 March 2024

Abstract

In the past years various studies have shown that the proton-neutron pairing correlations in N=Z nuclei can be accurately described by a condensate of α-like quartets. It was also shown that the α-like quartets, defined as 4- body collective structures built with two neutrons and two protons, are also able to describe the correlations induced by general two-body interactions of shell-model type. In this paper we summarise the studies mentioned above and then we discuss how the fingerprints of the quartet condensation could be investigated by α-transfer reactions.