Suzuki, D., Iwasaki, H., Beaumel, D., Assie, M., Baba, H., Blumenfeld, Y., Santos, F. de Oliveira, de Sereville, N., Drouart, A., Franchoo, S., Gibelin, J., Gillibert, A., Giron, S., Grevy, S., Guillot, J., Hackstein, M., Hammache, F., Keeley, N., Lapoux, V., Marechal, F., Matta, A., Michimasa, S., Nalpas, L., Naqvi, F., Okamura, H., Otsu, H., Pancin, J., Pang, D. Y., Perrot, L., Petrache, C. M., Pollacco, E., Ramus, A., Rother, W., Roussel-Chomaz, P., Sakurai, H., Scarpaci, J. -A., Sorlin, O., Srivastava, P. C., Stefan, I., Stodel, C., Tanimura, Y. and Terashima, S. (2016). Second 0(+) state of unbound O-12: Scaling of mirror asymmetry. Phys. Rev. C, 93 (2). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

The unbound O-12 nucleus was studied via the two-neutron transfer (p, t) reaction in inverse kinematics using a radioactive O-14 beam at 51 MeV/u. Excitation energy spectra and differential cross sections were deduced by the missing mass method using MUST2 telescopes. We achieved much higher statistics compared to the previous experiments of O-12, which allowed accurate determination of resonance energy and unambiguous spin and parity assignment. The O-12 resonance previously reported using the same reaction was confirmed at an excitation energy of 1.62 +/- 0.03(stat.) +/- 0.10(syst.). MeV and assigned spin and parity of 0(+) from a distorted-wave Born approximation analysis of the differential cross sections. Mirror symmetry of O-12 with respect to its neutron-rich partner Be-12 is discussed from the energy difference of the second 0(+) states. In addition, from systematics of known 0(+) states, a distinct correlation is revealed between the mirror energy difference and the binding energy after carrying out a scaling with the mass and the charge. We show that the mirror energy difference of the observed 0(+) state of O-12 is highly deviated from the systematic trend of deeply bound nuclei and in line with the scaling relation found for weakly bound nuclei with a substantial 2s(1/2) component. The importance of the scaling of mirror asymmetry is discussed in the context of ab initio calculations near the drip lines and universality of few-body quantum systems.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Suzuki, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Iwasaki, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beaumel, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Assie, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baba, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Blumenfeld, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Santos, F. de OliveiraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de Sereville, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Drouart, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Franchoo, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gibelin, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gillibert, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giron, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grevy, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guillot, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hackstein, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hammache, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Keeley, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lapoux, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marechal, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matta, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michimasa, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nalpas, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Naqvi, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Okamura, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Otsu, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pancin, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pang, D. Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perrot, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Petrache, C. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pollacco, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ramus, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rother, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Roussel-Chomaz, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sakurai, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scarpaci, J. -A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sorlin, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Srivastava, P. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stefan, I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stodel, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tanimura, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Terashima, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-284304
DOI: 10.1103/PhysRevC.93.024316
Journal or Publication Title: Phys. Rev. C
Volume: 93
Number: 2
Date: 2016
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2469-9993
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
NUCLEAR-DATA SHEETS; DOUBLE-CHARGE-EXCHANGE; N=8 SHELL CLOSURE; ENERGY-LEVELS; LIGHT-NUCLEI; GROUND-STATE; HALO NUCLEI; DRIP-LINE; EFIMOV STATES; QUANTUM HALOSMultiple languages
Physics, NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/28430

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