Abstract

The γ -particle coincident measurements, performed by coupling of the PRISMA spectrometer to the large γ arrays (CLARA and AGATA), demonstrate a strong interplay between single-particle and collective degrees of freedom that is pertinent to the reaction dynamics. By using the unique PRISMA performance in terms of both resolution and efficiency, measurements at very low bombarding energies have been performed. Via transfer of nucleon pairs, valuable information on the component responsible for particle correlations has been derived.

Highlights

  • The recent revival of transfer reaction studies [1] greatly benefited from the construction of the new generation instrumentation that reached an unprecedented efficiency and selectivity

  • In the region close to the Coulomb barrier, these reactions reflect a strong interplay between single-particle and collective degrees of freedom and the reaction dynamics [2,3,4]

  • Significant progress has been recently achieved by performing studies far below the Coulomb barrier with the PRISMA spectrometer

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Summary

Introduction

The recent revival of transfer reaction studies [1] greatly benefited from the construction of the new generation instrumentation that reached an unprecedented efficiency and selectivity. In the region close to the Coulomb barrier, these reactions reflect a strong interplay between single-particle and collective degrees of freedom and the reaction dynamics [2,3,4]. Significant progress has been recently achieved by performing studies far below the Coulomb barrier with the PRISMA spectrometer. Transfer cross sections obtained from excitation functions for the closed shell 40Ca+96Zr [5] and superfluid 60Ni+116Sn [6] systems have been measured from the Coulomb barrier energy to deep below it. In this work I will focus on the main outcome of the recent studies, critically addressing the new achievements, the present problems and new challenges

Transfer reaction mechanism
Particle vibration couplings
Nucleon-nucleon correlations
Proton-neutron correlations
Summary and outlook

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