Splitting of ISGMR strength in the light-mass nucleus 24Mg due to ground-state deformation
- Gupta, Y.K.
- Garg, U.
- Matta, J.T.
- Patel, D.
- Peach, T.
- Hoffman, J.
- Yoshida, K.
- Itoh, M.
- Fujiwara, M.
- Hara, K.
- Hashimoto, H.
- Nakanishi, K.
- Yosoi, M.
- Sakaguchi, H.
- Terashima, S.
- Kishi, S.
- Murakami, T.
- Uchida, M.
- Yasuda, Y.
- Akimune, H.
- Kawabata, T.
- Harakeh, M.N.
Publication date
September 2015
DOI Publisher
The Authors. Published by Elsevier B.V.Abstract
AbstractThe isoscalar giant monopole resonance (ISGMR) strength distribution in 24Mg has been determined from background-free inelastic scattering of 386-MeV α particles at extreme forward angles, including 0∘. The ISGMR strength distribution has been observed for the first time to have a two-peak structure in a light-mass nucleus. This splitting of ISGMR strength is explained well by microscopic theory in terms of the prolate deformation of the ground state of 24Mg
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