• Open Access

Spectroscopy of Ar46 by the (t,p) two-neutron transfer reaction

K. Nowak et al.
Phys. Rev. C 93, 044335 – Published 27 April 2016

Abstract

States in the N=28 nucleus Ar46 have been studied by a two-neutron transfer reaction at REX-ISOLDE (CERN). A beam of radioactive Ar44 at an energy of 2.16 AMeV and a tritium-loaded titanium target were used to populate Ar46 by the H3(Ar44,p) two-neutron transfer reaction. Protons emitted from the target were identified in the T-REX silicon detector array. The excitation energies of states in Ar46 have been reconstructed from the measured angles and energies of recoil protons. Angular distributions for three final states were measured and based on the shape of the differential cross section an excited state at 3695 keV was identified as Jπ=0+. The angular differential cross section for the population of different states are compared to calculations using a reaction model employing both sequential and direct transfer of two neutrons. Results are compared to shell-model calculations using state-of-the-art effective interactions.

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  • Received 1 March 2016

DOI:https://doi.org/10.1103/PhysRevC.93.044335

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

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Vol. 93, Iss. 4 — April 2016

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