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Title: Studies of the shapes of heavy pear-shaped nuclei at ISOLDE

Abstract

For certain combinations of protons and neutrons there is a theoretical expectation that the shape of nuclei can assume octupole deformation, which would give rise to reflection asymmetry or a ”pear-shape” in the intrinsic frame, either dynamically (octupole vibrations) or statically (permanent octupole deformation). I will briefly review the historic evidence for reflection asymmetry in nuclei and describe how recent experiments carried out at REX-ISOLDE have constrained nuclear theory and how they contribute to tests of extensions of the Standard Model. I will also discuss future prospects for measuring nuclear shapes from Coulomb Excitation: experiments are being planned that will exploit beams from HIE-ISOLDE that are cooled in the TSR storage ring and injected into a solenoidal spectrometer similar to the HELIOS device developed at the Argonne National Laboratory.

Authors:
 [1]
  1. Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
Publication Date:
OSTI Identifier:
22608491
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1753; Journal Issue: 1; Conference: Latin American symposium on nuclear physics and applications, Medellin (Colombia), 30 Nov - 4 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ANL; ASYMMETRY; BEAMS; COULOMB EXCITATION; DEFORMATION; HELIOS DEVICES; NEUTRONS; NUCLEAR THEORY; NUCLEI; OCTUPOLES; PEARS; PROTONS; REFLECTION; REVIEWS; SPECTROMETERS; STANDARD MODEL; TSR STORAGE RING

Citation Formats

Butler, P. A., E-mail: peter.butler@liverpool.ac.uk. Studies of the shapes of heavy pear-shaped nuclei at ISOLDE. United States: N. p., 2016. Web. doi:10.1063/1.4955343.
Butler, P. A., E-mail: peter.butler@liverpool.ac.uk. Studies of the shapes of heavy pear-shaped nuclei at ISOLDE. United States. doi:10.1063/1.4955343.
Butler, P. A., E-mail: peter.butler@liverpool.ac.uk. Thu . "Studies of the shapes of heavy pear-shaped nuclei at ISOLDE". United States. doi:10.1063/1.4955343.
@article{osti_22608491,
title = {Studies of the shapes of heavy pear-shaped nuclei at ISOLDE},
author = {Butler, P. A., E-mail: peter.butler@liverpool.ac.uk},
abstractNote = {For certain combinations of protons and neutrons there is a theoretical expectation that the shape of nuclei can assume octupole deformation, which would give rise to reflection asymmetry or a ”pear-shape” in the intrinsic frame, either dynamically (octupole vibrations) or statically (permanent octupole deformation). I will briefly review the historic evidence for reflection asymmetry in nuclei and describe how recent experiments carried out at REX-ISOLDE have constrained nuclear theory and how they contribute to tests of extensions of the Standard Model. I will also discuss future prospects for measuring nuclear shapes from Coulomb Excitation: experiments are being planned that will exploit beams from HIE-ISOLDE that are cooled in the TSR storage ring and injected into a solenoidal spectrometer similar to the HELIOS device developed at the Argonne National Laboratory.},
doi = {10.1063/1.4955343},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1753,
place = {United States},
year = {Thu Jul 07 00:00:00 EDT 2016},
month = {Thu Jul 07 00:00:00 EDT 2016}
}