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Joakim

Joakim Cederkäll

Professor

Joakim

Coulomb Excitation of Proton-rich N = 80 Isotones at HIE-ISOLDE

Author

  • Ralph Kern
  • Radostina Zidarova
  • Norbert Pietralla
  • Georgi Rainovski
  • Liam P. Gaffney
  • Andrey Blazhev
  • Amar Boukhari
  • Joakim Cederkäll
  • James G. Cubiss
  • Martin Djongolov
  • Christoph Fransen
  • Kalin Gladnishki
  • Efstathios Giannopoulos
  • Herbert Hess
  • Jan Jolie
  • Vasil Karayonchev
  • Levent Kaya
  • James M. Keatings
  • Diana Kocheva
  • Thorsten Kröll
  • Oliver Möller
  • George G. O'Neill
  • Janne Pakarinen
  • Peter Reiter
  • Dawid Rosiak
  • Marcus Scheck
  • Jacob Snall
  • Pär Anders Söderström
  • Pietro Spagnoletti
  • Robert Stegmann
  • Milena Stoyanova
  • Stefan Thiel
  • Andreas Vogt
  • Nigel Warr
  • Andree Welker
  • Volker Werner
  • Johannes Wiederhold
  • Hilde De Witte
Show all

Summary, in English

A projectile Coulomb-excitation experiment was performed at the radioactive ion beam facility HIE-ISOLDE at CERN. The radioactive 140Nd and 142Sm ions were post accelerated to the energy of 4.62 MeV/A and impinged on a 1.45 mg/cm2-thin 208Pb target. The γ rays depopulating the Coulomb-excited states were recorded by the HPGe-array MINIBALL. The scattered charged particles were detected by a double-sided silicon strip detector in forward direction. Experimental γ-ray intensities were used for the determination of electromagnetic transition matrix elements. Preliminary results for the reduced transition strength of the B(M1 23+ to 21+)=0.35(19) μN2 of 140Nd and a first estimation for 142Sm have been deduced using the Coulomb-excitation calculation software GOSIA. The 23+ states of 140Nd and 142Sm show indications of being the main fragment of the proton-neutron mixed-symmetry 21, ms+ state.

Department/s

  • Nuclear physics

Publishing year

2020-05-28

Language

English

Publication/Series

Journal of Physics: Conference Series

Volume

1555

Issue

1

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Subatomic Physics

Conference name

23rd International School on Nuclear Physics, Neutron Physics and Applications

Conference date

2019-09-22 - 2019-09-28

Conference place

Varna, Bulgaria

Status

Published

ISBN/ISSN/Other

  • ISSN: 1742-6588