Search for the states in $^{8}$B via $^{7}$Be + d

POSTER

Abstract

The spectroscopy of the light drip-line nuclei provides an important test of nuclear models (e.g., no-core shell models and cluster models) at the extremes of isospin. Few excited states have been observed [1] in the $^{8}$B nucleus, including the mirror of states in $^{8}$Li (e.g., the 4+ $^{8}$Li state at 6.53 MeV) that may have exotic configurations. We have searched for states in $^{8}$B by bombarding a CD$_{2}$ target with a $^{7}$Be radioactive ion beam at ORNL's Holifield Radioactive Ion Beam Facility. The light charged particles (p, $^{3}$He, and $^{4}$He) emitted from the decay of $^{8}$B were detected in triple coincidence to reconstruct possible excited states in $^{8}$B. The present focus is on the analysis of the triple coincidence data. Preliminary results and implications for the $^{8}$B level structure will be reported. This work supported in part by the U.S. Department of Energy and the National Science Foundation. [1] D. R. Tilley \textit{et al.}, Nucl. Phys. A 745, 155 (2004)

Authors

  • Leif Segen

    Rutgers

  • Kyung Yuk Chae

    ORNL, U of TN

  • Daniel Bardayan

    ORNL

  • J.C. Blackmon

    ORNL \& LSU, Louisiana State University, ONRL, ORNL

  • Art Champagne

    U of NC

  • J.J. Das

    IUAC, India

  • Ryan Fitzgerald

    U of NC

  • Valdir Guimar\~aes

    U of S\~ao Paulo

  • K.L. Jones

    Rutgers, Univ. of Tenn.

  • Micah Johnson

    ORAU

  • Raymond Kozub

    TTU

  • R.J. Livesay

    CO School of Mines

  • Zhanwen Ma

    ORNL, U of TN

  • Caroline Nesaraja

    ORNL, U of TN

  • S.D. Pain

    Rutgers, Rutgers University

  • Michael Smith

    ORNL

  • Jeff Thomas

    Rutgers

  • Dale Visser

    U of NC