TY - JOUR
T1 - Splitting of ISGMR strength in the light-mass nucleus 24Mg due to ground-state deformation
AU - Gupta, Y. K.
AU - Garg, U.
AU - Matta, J. T.
AU - Patel, D.
AU - Peach, T.
AU - Hoffman, J.
AU - Yoshida, K.
AU - Itoh, M.
AU - Fujiwara, M.
AU - Hara, K.
AU - Hashimoto, H.
AU - Nakanishi, K.
AU - Yosoi, M.
AU - Sakaguchi, H.
AU - Terashima, S.
AU - Kishi, S.
AU - Murakami, T.
AU - Uchida, M.
AU - Yasuda, Y.
AU - Akimune, H.
AU - Kawabata, T.
AU - Harakeh, M. N.
N1 - Funding Information:
The authors acknowledge the efforts of the staff of the RCNP Ring Cyclotron Facility in providing a high-quality, halo-free α-particle beam required for the challenging measurements reported in this paper. Discussions with Prof. G. Colò on the theoretical aspects of this work are also gratefully acknowledged. This work has been supported in part by the U.S. National Science Foundation (Grant Numbers INT-9910015 , PHY04-57120, and PHY-1419765 ), and by the JSPS KAKENHI (Grant Numbers 23740223 and 25287065 ). The numerical calculations were performed on SR16000 at the Yukawa Institute for Theoretical Physics, Kyoto University.
Publisher Copyright:
© 2015 The Authors.
PY - 2015/9/2
Y1 - 2015/9/2
N2 - The 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{ring operator}. 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.
AB - The 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{ring operator}. 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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U2 - 10.1016/j.physletb.2015.07.021
DO - 10.1016/j.physletb.2015.07.021
M3 - Article
AN - SCOPUS:84937849007
VL - 748
SP - 343
EP - 346
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -