Excitation of the isoscalar giant monopole resonance using Li 6 inelastic scattering

J. Arroyo, U. Garg, H. Akimune, G. P.A. Berg, D. C. Cuong, M. Fujiwara, M. N. Harakeh, M. Itoh, T. Kawabata, K. Kawase, J. T. Matta, D. Patel, M. Uchida, M. Yosoi

Research output: Contribution to journalArticlepeer-review

Abstract

The incompressibility of infinite nuclear matter (K∞) is a parameter in the description of the nuclear equation of state that governs the energy cost associated with density oscillations near the saturation density. The most direct experimental method for studying this property of infinite nuclear matter is to probe the isoscalar giant monopole resonance (ISGMR) in finite nuclei. This paper explores the use of Li6 as a probe to study the ISGMR in several stable nuclei: Ni58, Zr90, Sn116, and Pb208, as complementary to using inelastic scattering of α particles, which has been used to great effect over the last several decades. Elastic and inelastic scattering data for these targets were collected with 343-MeV Li6 beams. In all nuclei studied in this paper, the ISGMR strength distributions extracted from multipole decomposition analyses of the inelastic scattering spectra agree very well with the previously measured ISGMR responses from α-particle scattering, establishing the feasibility of employing Li6 inelastic scattering in investigations of the ISGMR.

Original languageEnglish
Article number014308
JournalPhysical Review C
Volume111
Issue number1
DOIs
StatePublished - Jan 2025
Externally publishedYes

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