A new frontier: neutron-shell structure below Pb along N=127 isotone via the <sup>206</sup>Hg(d,p) reaction.

ORAL

Abstract

The single-particle structure of the N=127 isotones below 209Pb has hitherto remained unexplored. In a first exploration of this region, single-neutron excitations in 207Hg have been measured via 206Hg(d,p) reaction in inverse kinematics. The 206Hg beam was produced at the ISOLDE facility at an energy of 7.4 MeV/u. The energy and position of outgoing protons were measured by the new ISOLDE Solenoidal Spectrometer (ISS) at a field of 2.5 T. Seven states have observed in 207Hg. Angular distributions suggest that these states are carry components of the 0g9/2, 2d5/2, 3s1/2, 2d3/2 and 0g7/2 strength. Aside from the 2d5/2 strength, which is strongly fragmented, the states represent close to the total single-neutron strength for each orbital.

*This work was supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract Number DE-AC02-06CH11357 (ANL), the UK Science and Technology Facilities Council, and the European Union's Horizon 2020 Framework research and innovation program under grant agreement no. 654002 (ENSAR2).

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Presenters

  • Tsz Leung Tang

    • Argonne National Laboratory

Authors

  • Tsz Leung Tang

    • Argonne National Laboratory

  • Benjamin P Kay

    • Argonne National Laboratory

  • Calem R Hoffman

    • Argonne National Laboratory

  • David Sharp

    • University of Manchester

  • Gaffney Liam

    • CERN

  • Peter A. Butler

    • University of Liverpool

  • Wilton N. Catford

    • University of Surrey

  • Giacomo de Angelis

    • INFN

  • Freddy Flavigny

    • IPN

  • Sean John Freeman

    • University of Manchester

  • Eleonora T. Gregor

    • INFN

  • Joonas Konki

    • CERN

  • Marc Labiche

    • STFC Daresbury Laboratory, STFC Daresbury Laboratory

  • Patrick T. MacGregor

    • University of Manchester

  • Ismael Martel-Bravo

    • University of Liverpool

  • Robert D. Page

    • University of Liverpool

  • Zsolt Podolyak

    • University of Surrey

  • Oleksii Poleshchuk

    • KU Leuven

  • Riccardo Raabe

    • KU Leuven

  • Alex A. Raj

    • KU Leuven

  • Francesco Recchia

    • University of Padova

  • John P Schiffer

    • Argonne National Laboratory

  • John F. Smith

    • University of the West of Scotland

  • Stuart V. Szwec

    • University of Jyväskylä

  • Jiecheng Yang

    • KU Leuven