Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session EM: Nuclear Structure A=6-20 Part II
7:00 PM–9:30 PM,
Thursday, October 25, 2018
Hilton
Room: Queen's 6
Chair: Frederic Sarazin, Colorado School of Mines
Abstract ID: BAPS.2018.HAW.EM.2
Abstract: EM.00002 : Coulomb shift in two-center mirror systems
7:15 PM–7:30 PM
Presenter:
Makoto Nakao
(Department of Pure and Applied Physics, Kansai University)
Authors:
Makoto Nakao
(Department of Pure and Applied Physics, Kansai University)
Hajime Umehara
(Department of Physics, Osaka University)
Shuichiro Ebata
(Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology)
Makoto Ito
(Department of Pure and Applied Physics, Kansai University)
The so-called cluster structures appear in the excited states of light nuclear systems, and the structures have been extensively investigated in N = Z self-conjugate systems.
In the present report, we focus on a mirror system in non self-conjugate systems (N ≠ Z) and demonstrate that the Coulomb shift of the mirror systems is a new probe to catch the sign of the clustering phenomena. Here we discuss the Coulomb shift in the energy levels of the mirror systems, such as 18O = α + 14C and 18Ne = α + 14O. We have applied the orthogonality condition model (OCM) to these systems. The OCM calculation predicts that the Coulomb shift for the resonant 0+ states is prominently reduced in comparison to the shift for the low-lying bound states. This reduction is induced by the development of the α clustering. Therefore, this result strongly suggests that the Coulomb shift is new probe to identify the cluster degrees of freedom.
In this report, we will discuss the enhanced monopole transition, which is another probe to identify the cluster degrees of freedom in detail.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.EM.2
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