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Title: Nucleon-nucleon correlations in heavy ion transfer reactions: Recent investigations at energies far below the Coulomb barrier

Excitation functions of one- and two-neutron transfer channels have been measured for the {sup 96}Zr+{sup 40}Ca and {sup 116}Sn+{sup 60}Ni systems at bombarding energies ranging from the Coulomb barrier to ∼25% below. Target-like recoils have been identified in A, Z and velocity with the large solid angle magnetic spectrometer PRISMA. The experimental transfer probabilities have been compared, in absolute values and in slope, with semiclassical microscopic calculations which incorporate nucleon-nucleon pairing correlations. For the first time in a heavy ion collision, one was able to provide a consistent description of one and two neutron transfer reactions by incorporating, in the reaction mechanism, all known structure information of entrance and exit channels nuclei. In particular, there is no need to introduce any enhancement factor for the description of two neutron transfer, of course very important are the correlations induced by the pairing interaction.
Authors:
 [1]
  1. INFN, Laboratori Nazionali di Legnaro, Viale dell’Universita’ 2 - 35020, Legnaro (Padova) - Italy (Italy)
Publication Date:
OSTI Identifier:
22492488
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1681; Journal Issue: 1; Conference: Nuclear Structure and Dynamics '15: 3. international nuclear physics conference on nuclear structure and dynamics, Portoroz (Slovenia), 14-19 Jun 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CALCIUM 40; COMPARATIVE EVALUATIONS; COULOMB FIELD; EXCITATION FUNCTIONS; HEAVY ION REACTIONS; MAGNETIC SPECTROMETERS; NEUTRON TRANSFER; NICKEL 60; NUCLEON-NUCLEON INTERACTIONS; PAIRING INTERACTIONS; REACTION KINETICS; SEMICLASSICAL APPROXIMATION; TIN 116 TARGET; TRANSFER REACTIONS; ZIRCONIUM 96 TARGET