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 EG: Nuclear Structure A=100-140
7:00 PM–9:30 PM,
Thursday, October 25, 2018
Hilton
Room: King's 3
Chair: Kathrin Wimmer, The University of Tokyo
Abstract ID: BAPS.2018.HAW.EG.6
Abstract: EG.00006 : Proton resonance scattering of a shape-coexistence nucleus 118Sn
8:15 PM–8:30 PM
Presenter:
Rieko Tsunoda
(Center for Nuclear Study, the University of Tokyo)
Authors:
Rieko Tsunoda
(Center for Nuclear Study, the University of Tokyo)
Nobuaki Imai
(Center for Nuclear Study, the University of Tokyo)
Takashi Teranishi
(Department of Physics, Kyushu University)
Masanori Dozono
(Center for Nuclear Study, the University of Tokyo)
Kotaro Iribe
(Department of Physics, Kyushu University)
Noritaka Kitamura
(Center for Nuclear Study, the University of Tokyo)
Satoshi Sakaguchi
(Department of Physics, Kyushu University)
Hidemitsu Sakai
(Department of Physics, Kyushu University)
Kazuki Ueno
(Department of Physics, Kyushu University)
It is well known that shape coexistence was observed in stable even-even Sn(Z=50) nuclei, and the even-odd neighbouring nucleus may have a hint of the structure. So far, some single-particle like states in 119Sn were observed by measuring (d,p) reaction on 118Sn. Though the isobaric analog resonances corresponding to the low-lying states in 119Sn were already measured for the spectroscopic information on 119Sn, there are some missing resonances expected from (d,p) reaction. It is necessary to measure the excitation function of proton-elastic resonance scattering with the wide energy range to understand the structure of 119Sn. The proton resonance elastic scattering on 118Sn yields the spectroscopic information of the single particle state coupled to the ground state of 118Sn. In addition, the inelastic channels will also tell the fruitful information.
The experiment was carried out at the tandem accelerator facility in Kyushu Univ. An enriched 118Sn target was irradiated by a proton beam while varying the beam energy from 7 to 10 MeV. The reaction channel was identified by the outgoing angle and energy of scattered protons measured by single-sided silicon strip detectors placed at 140-160°lab. We will present the details of the experimental setup and the preliminary result.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.EG.6
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