<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>E</mi><mn>2</mn><mn></mn></math></span> Isovector Giant Resonance as Seen through the Capture of Fast Neutrons

D. M. Drake; S. Joly; L. Nilsson; S. A. Wender; K. Aniol; I. Halpern; D. Storm

doi:10.1103/PhysRevLett.47.1581

$E 2$ Isovector Giant Resonance as Seen through the Capture of Fast Neutrons

D. M. Drake, S. Joly, L. Nilsson, S. A. Wender, K. Aniol, I. Halpern, and D. Storm

Phys. Rev. Lett. 47, 1581 – Published 30 November 1981

Abstract

The forward-to-backward asymmetry of high-energy photons emitted in the radiative capture of neutrons with energies up to 20 MeV was measured for ${}^{208}{Pb}$ . The asymmetry increases abruptly from small values to large ones near $E_{γ} \sim 23$ MeV supporting the location in that neighborhood of the $E 2$ giant isovector resonance.

Received 10 August 1981

DOI:https://doi.org/10.1103/PhysRevLett.47.1581

Authors & Affiliations

D. M. Drake, S. Joly^*, L. Nilsson^†, and S. A. Wender

Los Alamos National Laboratory, Los Alamos, New Mexico 87545

K. Aniol^‡, I. Halpern, and D. Storm

University of Washington, Seattle, Washington 98195

^*Present address: Centre d'Etudes de Bruyèresle Châtel, B.P. 561, F-92542 Montrouge, France.
^†Present address: Tandem Accelerator Laboratory, University of Uppsala, Uppsala, Sweden.
^‡Present address: Physics Department, University of British Columbia, Vancouver V6T 1W5, Canada.