Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session F13: Nuclear Theory II
9:00 AM–11:15 AM,
Thursday, November 30, 2023
Hilton Waikoloa Village
Room: Kona 2-3
Chair: Gregory Potel, Lawrence Livermore Natl Lab
Abstract: F13.00005 : Generator coordinate method with optimum basis*
10:00 AM–10:15 AM
Presenter:
Moemi Matsumoto
Authors:
Moemi Matsumoto
Yusuke Tanimura
(Soongsil University)
Kouichi Hagino
(Kyoto University)
Recently, we are developing a new extension of GCM, by optimizing both the basis SDs and the weight functions according to the variational principle. With such simultaneous optimization of the basis states, one does not have to specify beforehand the relevant collective degrees of freedom covered by the set of basis SDs. In this presentation, I will present results for sd-shell nuclei with the Skyrme energy functional. Our results indicate that collective coordinates often assumed in conventional GCM calculations, such as quadrupole moment, may not provide optimal basis to describe the ground states. This work would be an important step towards consistent description of nuclear collective motions.
*This work was supported by JST SPRING Grant No. JPMJSP2114, JSPS KAKENHI Grants No. JP19K03861 and No. JP21H00120, and Graduate Program on Physics for the Universe (GP-PU) of Tohoku University. The numerical calculations were performed with the computer facility at the Yukawa Institute for Theoretical Physics, Kyoto University.
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