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Microscopic clustering in light nuclei

Martin Freer*, Hisashi Horiuchi†, Yoshiko Kanada-En’yo‡, Dean Lee§, and Ulf-G. Meißner∥

Martin Freer*

  • School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom

Hisashi Horiuchi†

  • Research Center for Nuclear Physics (RCNP), Osaka University, Osaka 567-0047, Japan and International Institute for Advanced Studies, Kizugawa 619-0225, Japan

Yoshiko Kanada-En’yo‡

  • Department of Physics, Kyoto University, Kyoto 606-8502, Japan

Dean Lee§

  • Facility for Rare Isotope Beams and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA

Ulf-G. Meißner∥

  • Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany and Forschungszentrum Jülich, Institute for Advanced Simulation (IAS-4), Institut für Kernphysik (IKP-3), Jülich Center for Hadron Physics and JARA-HPC, D-52425 Jülich, Germany

  • *m.freer@bham.ac.uk
  • †horiuchi@rcnp.osaka-u.ac.jp
  • ‡yenyo@ruby.scphys.kyoto-u.ac.jp
  • §leed@frib.msu.edu
  • ∥meissner@hiskp.uni-bonn.de
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Rev. Mod. Phys. 90, 035004 – Published 28 August, 2018

DOI: https://doi.org/10.1103/RevModPhys.90.035004

Abstract

This review examines the tendency of light nuclei to exhibit clustering, where correlations between nucleons result in the formation of precipitates, typically α particles. The observation of clustering dates to the earliest days of the subject, where α particles were the building blocks of some nuclear models. The description of a nucleus in terms of clusters was attractive in terms of simplifying the computationally challenging problem through the reduction of the degrees of freedom. However, more recently it has been possible to develop ab initio methods which seek to build nuclei not from the clusters, but from the individual nucleons with a full account of the Pauli exclusion principle. This review links the development of the subject from the assumption of preformed α particles, through to the development of models which demonstrate the appearance of clustering from the A-nucleon wave function with realistic but effective interactions, to finally first principle approaches using interactions based on chiral effective field theory and the symmetries of quantum chromodynamics. This places the understanding of clustering as a cornerstone of the development of nuclear theory as it attempts to develop a complete understanding of light nuclei from the fundamental strong force.

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Rev. Mod. Phys. 90, 035004– Published 28 August, 2018
  • Received 21 May 2017
Article part of CHORUS
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