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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

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.

Detaljer

Författare
  • Ralph Kern
  • Radostina Zidarova
  • Norbert Pietralla
  • Georgi Rainovski
  • Liam P. Gaffney
  • Andrey Blazhev
  • Amar Boukhari
  • 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
Enheter & grupper
Externa organisationer
  • Technical University of Darmstadt
  • University of Sofia
  • CERN
  • University of Cologne
  • University of York
  • University of Jyväskylä
  • University of the West of Scotland
  • University of the Western Cape
  • National Research Foundation - South Africa
  • ELI-NP
  • KU Leuven
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
Originalspråkengelska
Artikelnummer012027
TidskriftJournal of Physics: Conference Series
Volym1555
Utgåva nummer1
StatusPublished - 2020 maj 28
PublikationskategoriForskning
Peer review utfördJa
Evenemang23rd International School on Nuclear Physics, Neutron Physics and Applications - Varna, Bulgarien
Varaktighet: 2019 sep 222019 sep 28