Neutron Skin Effects in Mirror Energy Differences: The Case of 23Mg-23Na

被引：16

作者：

Boso, A. ^{[1
,2
,20
]}

Lenzi, S. M. ^{[1
,2
]}

Recchia, F. ^{[1
,2
]}

Bonnard, J. ^{[2
,3
]}

Zuker, A. P. ^{[1
,4
,5
]}

Aydin, S. ^{[6
]}

Bentley, M. A. ^{[7
]}

Cederwall, B. ^{[8
]}

Clement, E. ^{[9
]}

de France, G. ^{[9
]}

Di Nitto, A. ^{[10
,11
,12
]}

Dijon, A. ^{[9
]}

Doncel, M. ^{[8
]}

Ghazi-Moradi, F. ^{[8
]}

Gadea, A. ^{[13
]}

Gottardo, A. ^{[14
]}

Henry, T. ^{[7
]}

Huyuk, T. ^{[13
]}

Jaworski, G. ^{[15
]}

John, P. R. ^{[1
,2
,21
]}

Juhasz, K. ^{[16
]}

Kuti, I ^{[16
]}

Melon, B. ^{[17
,18
]}

Mengoni, D. ^{[1
,2
]}

Michelagnoli, C. ^{[1
,2
]}

Modamio, V ^{[14
]}

Napoli, D. R. ^{[14
]}

Nyako, B. M. ^{[16
]}

Nyberg, J. ^{[19
]}

Palacz, M. ^{[15
]}

Timar, J. ^{[16
]}

Valiente-Dobon, J. J. ^{[14
]}

机构：

[1] Univ Padua, Dipartimento Fis & Astron, I-135131 Padua, Italy

[2] INFN, Sez Padova, I-135131 Padua, Italy

[3] Univ Paris Saclay, Univ Paris Sud, Inst Phys Nucl, IN2P3,CNRS, F-91405 Orsay, France

[4] Univ Strasbourg, F-67000 Strasbourg, France

[5] IPHC, F-67000 Strasbourg, France

[6] Aksaray Univ, Dept Phys, TR-68100 Aksaray, Turkey

[7] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[8] Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden

[9] CNRS, CEA, GANIL, DRF,IN2P3, F-14076 Caen, France

[10] Dipartimento Fis, I-80126 Naples, Italy

[11] INFN, Sez Napoli, I-80126 Naples, Italy

[12] Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany

[13] Univ Valencia, IFIC, CSIC, E-46980 Valencia, Spain

[14] INFN, Lab Nazl Legnaro, I-35020 Padua, Italy

[15] Warsaw Univ, Heavy Ion Lab, PL-02093 Warsaw, Poland

[16] Hung Acad Sci, Inst Nucl Res ATOMKI, H-4001 Debrecen, Hungary

[17] Dipartimento Fis, I-50019 Florence, Italy

[18] INFN, Sez Firenze, I-50019 Florence, Italy

[19] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden

[20] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England

[21] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 03期

关键词：

HIGH-SPIN STATES; GAMMA-RAY SPECTROMETER; SHELL-MODEL; EXOGAM; NA-23;

D O I：

10.1103/PhysRevLett.121.032502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Energy differences between analogue states in the T = 1/2 Mg-23-Na-23 mirror nuclei have been measured along the rotational yrast bands. This allows us to search for effects arising from isospin-symmetrybreaking interactions (ISB) and/or shape changes. Data are interpreted in the shell model framework following the method successfully applied to nuclei in the f(7/2) shell. It is shown that the introduction of a schematic ISB interaction of the same type of that used in the f(7/2) shell is needed to reproduce the data. An alternative novel description, applied here for the first time, relies on the use of an effective interaction deduced from a realistic charge-dependent chiral nucleon-nucleon potential. This analysis provides two important results: (i) The mirror energy differences give direct insight into the nuclear skin; (ii) the skin changes along the rotational bands are strongly correlated with the difference between the neutron and proton occupations of the s(1/2) "halo" orbit.

引用

页数：5

共 50 条

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