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Splitting of ISGMR strength in the light-mass nucleus $^{24}$Mg due to ground-state deformation

Authors :
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 Year :
2015

Abstract

The isoscalar giant monopole resonance (ISGMR) strength distribution in $^{24}$Mg has been determined from background-free inelastic scattering of 386-MeV $\alpha$ particles at extreme forward angles, including 0$^{\circ}$. 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 $^{24}$Mg.<br />Comment: 5 pages, 4 figures; to be published in Phys. Lett. B

Subjects

Subjects :
Nuclear Experiment
Nuclear Theory

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1507.03639
Document Type :
Working Paper