Structure of neutron-rich nuclei around the N=126 closed shell; the yrast structure of 205Au126 up to spin-parity Iπ = (19/2+)

被引：0

作者：

Podolyak, Zs. ^{[1
]}

Steer, S. J. ^{[1
]}

Pietri, S. ^{[1
]}

Gorska, M. ^{[2
]}

Regan, P. H. ^{[1
]}

Rudolph, D. ^{[3
]}

Garnsworthy, A. B. ^{[1
,4
]}

Hoischen, R. ^{[3
]}

Gerl, J. ^{[2
]}

Wollersheim, H. J. ^{[2
]}

Grawe, H.

Maier, K. H. ^{[5
,6
]}

Becker, F. ^{[2
]}

Bednarczyk, P. ^{[2
,5
]}

Caceres, L. ^{[2
,7
]}

Doornenbal, P. ^{[2
,8
]}

Geissel, H. ^{[2
]}

Grebosz, J. ^{[2
,5
]}

Kelic, A. ^{[2
]}

Kojouharov, I. ^{[2
]}

Kurz, N. ^{[2
]}

Montes, F. ^{[2
]}

Prokopowicz, W. ^{[2
]}

Saito, T. ^{[2
]}

Schaffner, H. ^{[2
]}

Tashenov, S. ^{[2
]}

Heinz, A. ^{[4
]}

Kurtukian-Nieto, T. ^{[9
]}

Benzoni, G. ^{[10
]}

Pfuetzner, M. ^{[11
]}

Jungclaus, A. ^{[7
]}

Balabanski, D. L. ^{[12
]}

Brandau, C. ^{[1
]}

Brown, B. A. ^{[1
,13
]}

Bruce, A. M. ^{[14
]}

Catford, W. N. ^{[1
]}

Cullen, I. J. ^{[1
]}

Dombradi, Zs. ^{[15
]}

Estevez, M. E. ^{[16
]}

Gelletly, W. ^{[1
]}

Ilie, G. ^{[8
]}

Jolie, J. ^{[8
]}

Jones, G. A. ^{[1
]}

Kmiecik, M. ^{[5
]}

Kondev, F. G. ^{[17
]}

Kruecken, R. ^{[18
,19
]}

Lalkovski, S. ^{[14
]}

Liu, Z. ^{[1
]}

Maj, A. ^{[5
]}

Myalski, S. ^{[5
]}

机构：

[1] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England

[2] GSI Darmstadt, D-64291 Darmstadt, Germany

[3] Lund Univ, Dept Phys, S-22100 Lund, Sweden

[4] Yale Univ, WNSL, New Haven, CT 06520 USA

[5] Inst Nucl Phys, PL-31342 Krakow, Poland

[6] Univ W Scotland, Dept Phys, Paisley PA1 2BE, Renfrew, Scotland

[7] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain

[8] Univ Cologne, IKP, D-50937 Cologne, Germany

[9] Univ Santiago de Compostela, Santiago De Compostela, Spain

[10] Univ Milan, Ist Nazl Fis Nucl, I-20133 Milan, Italy

[11] Warsaw Univ, IEP, PL-00681 Warsaw, Poland

[12] Bulgarian Acad Sci, INRNE, BG-1784 Sofia, Bulgaria

[13] Michigan State Univ, NSCL, E Lansing, MI 48824 USA

[14] Univ Brighton, Sch Environm & Technol, Brighton BN2 4GJ, E Sussex, England

[15] Inst Nucl Res, H-4001 Debrecen, Hungary

[16] Inst Fis Corpuscular, Valencia, Spain

[17] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA

[18] Tech Univ Munich, Phys Dept E12, D-8046 Garching, Germany

[19] Japan Atom Energy Agcy, Kizu, Kyoto 6190215, Japan

来源：

EUROPEAN PHYSICAL JOURNAL A | 2009年 / 42卷 / 03期

关键词：

ISOMER SPECTROSCOPY; FRAGMENTATION; ISOTOPES; PB-208; STATES; U-238;

D O I：

10.1140/epja/i2009-10794-5

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Heavy neutron-rich nuclei have been populated through the relativistic fragmentation of a Pb-208(82) beam at E/A = 1 GeV on a 2.5 g/cm(2) thick Be target. The synthesised nuclei were selected and identified in-flight using the fragment separator at GSI. Approximately 300 ns after production, the selected nuclei were implanted in an similar to 8 mm thick perspex stopper, positioned at the centre of the RISING gamma-ray detector spectrometer array. A previously unreported isomer with a half-life T-1/2 = 163(5) ns has been observed in the N = 126 closed-shell nucleus Au-205(79). Through gamma-ray singles and gamma-gamma coincidence analysis a level scheme was established. The comparison with a shell model calculation tentatively identifies the spin-parity of the excited states, including the isomer itself, which is found to be I-pi = (19/2(+)).

引用

页码：489 / 493

页数：5

共 5 条

[1] Structure of Neutron-rich N=126 Closed Shell Nuclei
Podolyak, Zs.
Steer, S. J.
Farrelly, G.
Gorska, M.
Grawe, H.
Maier, H. K.
Regan, P. H.
Benlliure, J.
Pietri, S.
Gerl, J.
Wollersheim, H. J.
NUCLEAR STRUCTURE AND DYNAMICS '09, 2009, 1165 : 86 - +
[2] Structure of neutron-rich nuclei around the N = 126 closed shell; the yrast structure of 205Au126 up to spin-parity \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$I^{\pi}$\end{document} = (19/2+)
Zs. Podolyák
S. J. Steer
S. Pietri
M. Górska
P. H. Regan
D. Rudolph
A. B. Garnsworthy
R. Hoischen
J. Gerl
H. J. Wollersheim
H. Grawe
K. H. Maier
F. Becker
P. Bednarczyk
L. Cáceres
P. Doornenbal
H. Geissel
J. Grebosz
A. Kelic
I. Kojouharov
N. Kurz
F. Montes
W. Prokopowicz
T. Saito
H. Schaffner
S. Tashenov
A. Heinz
T. Kurtukian-Nieto
G. Benzoni
M. Pfützner
A. Jungclaus
D. L. Balabanski
C. Brandau
B. A. Brown
A. M. Bruce
W. N. Catford
I. J. Cullen
Zs. Dombrádi
M. E. Estevez
W. Gelletly
G. Ilie
J. Jolie
G. A. Jones
M. Kmiecik
F. G. Kondev
R. Krücken
S. Lalkovski
Z. Liu
A. Maj
S. Myalski
The European Physical Journal A, 2009, 42 (3) : 489 - 493
[3] Structure of neutron-rich nuclei around the N=50 shell-gap closure
Faul, T.
Duchene, G.
Thomas, J. -C.
Nowacki, F.
Huyse, M.
Van Duppen, P.
LA RABIDA 2009: INTERNATIONAL SCIENTIFIC MEETING ON NUCLEAR PHYSICS: BASIC CONCEPTS IN NUCLEAR PHYSICS: THEORY, EXPERIMENTS, AND APPLICATIONS, 2010, 1231 : 181 - +
[4] Beta-decay half-lives of the extremely neutron-rich nuclei in the closed-shell N=50, 82, 126 groups
Uyen, Nguyen Kim
Chae, Kyung Yuk
Duy, Nguyen Ngoc
Nguyen Duy Ly
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2022, 49 (02)
[5] The study of neutron-rich nuclei production in the region of the closed shell N=126 in the multi-nucleon transfer reaction 136Xe+208Pb
Novikov, K.
Harca, I. M.
Kozulin, E. M.
Dmitriev, S.
Itkis, J.
Knyazheva, G.
Loktev, T.
Corradi, L.
Valiente-Dobon, J.
Fioretto, E.
Montanari, D.
Stefanini, A. M.
Vardaci, E.
Quero, D.
Montagnoli, G.
Scarlassara, F.
Strano, E.
Pollarolo, G.
Piot, J.
Mijatovic, T.
Szilner, S.
Ackermann, D.
Chubarian, G.
Trzaska, W. H.
8TH EUROPEAN SUMMER SCHOOL ON EXPERIMENTAL NUCLEAR ASTROPHYSICS (SANTA TECLA SCHOOL), 2016, 703

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