Elastic and Inelastic Scattering of $^8$He Using a Solid Hydrogen Target

ORAL

Abstract

The nucleus $^8$He is the most neutron-rich nucleus known. Its structure, consisting of a $^4$He core surrounded by four neutrons makes it an ideal case to study phenomena in highly neutron-proton asymmetric systems. An experiment studying elastic and inelastic scattering of $^8$He has been carried out at the IRIS setup at ISAC-II at TRIUMF. It utilized the novel IRIS solid H$_2$ target in combination with a low pressure ionization chamber for the identification of the incoming beam and two $\Delta E-E$ telescopes to measure the reaction products. The current status of the analysis will be shown, including the optical model analysis of the elastic scattering compared to global potentials and the analysis of excited states in $^8$He from inelastic scattering.

Authors

  • Matthias Holl

    Saint Mary's University/TRIUMF

  • Ritu Kanungo

    Saint Mary's University

  • Martin Alcorta

    TRIUMF

  • Devin Connolly

    TRIUMF

  • Barry Davids

    TRIUMF

  • Alejandra Diaz Varela

    University of Guelph

  • Greg Hackman

    TRIUMF

  • Jack Henderson

    TRIUMF

  • Shigeru Ishimoto

    KEK

  • Ali Ihsan Kilic

    University of Guelph

  • Reiner Krücken

    TRIUMF

  • Annika Lennarz

    TRIUMF

  • Johnson Liang

    McMaster University

  • James Measures

    TRIUMF/University of Surrey

  • Wolfgang Mittig

    NSCL/Michigan State University

  • Owen Paetkau

    TRIUMF/Thompson Rivers University

  • Athanasios Psaltus

    McMaster University

  • Jaspreet Singh Randhawa

    Saint Mary's University

  • James Smallcombe

    TRIUMF

  • Matt Williams

    TRIUMF/University of York