Compressional-mode Giant Resonances in $^{24}$Mg.

ORAL

Abstract

A precise measurement of the incompressibility of nuclear matter (K$_{nm})$ is required for understanding the properties of nuclei, neutron stars and supernova explosions. This can be achieved through the measurements of compressional-mode giant resonances--the isoscalar giant monopole resonance (ISGMR) and the isoscalar giant dipole resonance (ISGDR). ~We have performed measurements on GMR and ISGMR in $^{24}$Mg using forward-angle inelastic scattering of 400 MeV $\alpha $-particles. Differential angular distributions were measured over an angular range of 0-10 degree and an excitation energy range of 10-50 MeV. Strength distributions for both the compressional-mode giant resonances were obtained by employing the multi-pole decomposition procedure. The experimental results and their implications on the K$_{nm}$ will be discussed.

*This work is supported in part by the U.S. National Science Foundation, JSPS and the University of Notre Dame.

Authors

  • P.V. Madhusudhana Rao

  • T. Li

  • B.K. Nayak

  • U. Garg

    • Physics Department, University of Notre Dame, Notre Dame, IN 46556, USA
  • M. Itoh

  • M. Yosoi

  • M. Uchida

  • H. Takeda

  • Y. Yasuda

  • H. Sakaguchi

    • Dept. of Physics, Kyoto University, Kyoto 606-8502, Japan
  • H. Fujimura

  • K. Hara

  • M. Fujiwara

    • RCNP, Osaka University, Osaka 567-0047, Japan
  • T. Kawabata

    • CNS, University of Tokyo, Tokyo 113-0033, Japan
  • H. Akimune

    • Dept. of Physics, Konan University, Hyogo 658-8501, Japan
  • M.N. Harakeh

    • KVI, 9747 AA Groningen, The Netherlands