TY - JOUR
T1 - Deformation effects on isoscalar giant resonances in Mg 24
AU - Gupta, Y. K.
AU - Garg, U.
AU - Hoffman, J.
AU - Matta, J.
AU - Rao, P. V.Madhusudhana
AU - Patel, D.
AU - Peach, T.
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.
PY - 2016/4/21
Y1 - 2016/4/21
N2 - Strength distributions for isoscalar giant resonances with multipolarity L≤2 have been determined in Mg24 from "instrumental background-free" inelastic scattering of 386-MeV α particles at extreme forward angles, including 0. The isoscalar E0, E1, and E2 strengths are observed to be 57±7%, 111.1-7.2+10.9%, and 148.6±7.3%, respectively, of their energy-weighted sum rules in the excitation energy range of 6 to 35 MeV. The isoscalar giant monopole (ISGMR) and quadrupole (ISGQR) resonances exhibit a prominent K splitting which is consistent with microscopic theory for a prolate-deformed ground state of Mg24. For the ISGQR it is due to splitting of the three K components, whereas for the ISGMR it is due to its coupling to the K=0 component of the ISGQR. Deformation effects on the isoscalar giant dipole resonance are less pronounced, however.
AB - Strength distributions for isoscalar giant resonances with multipolarity L≤2 have been determined in Mg24 from "instrumental background-free" inelastic scattering of 386-MeV α particles at extreme forward angles, including 0. The isoscalar E0, E1, and E2 strengths are observed to be 57±7%, 111.1-7.2+10.9%, and 148.6±7.3%, respectively, of their energy-weighted sum rules in the excitation energy range of 6 to 35 MeV. The isoscalar giant monopole (ISGMR) and quadrupole (ISGQR) resonances exhibit a prominent K splitting which is consistent with microscopic theory for a prolate-deformed ground state of Mg24. For the ISGQR it is due to splitting of the three K components, whereas for the ISGMR it is due to its coupling to the K=0 component of the ISGQR. Deformation effects on the isoscalar giant dipole resonance are less pronounced, however.
UR - http://www.scopus.com/inward/record.url?scp=84964452687&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84964452687&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.93.044324
DO - 10.1103/PhysRevC.93.044324
M3 - Article
AN - SCOPUS:84964452687
VL - 93
JO - Physical Review C
JF - Physical Review C
SN - 2469-9985
IS - 4
M1 - 044324
ER -