β decay of 71,73Co: Probing single-particle states approaching doubly magic 78Ni

被引：21

作者：

Rajabali, M. M. ^{[1
,2
,3
]}

Grzywacz, R. ^{[1
,4
]}

Liddick, S. N. ^{[1
,5
,6
]}

Mazzocchi, C. ^{[1
,7
]}

Batchelder, J. C. ^{[8
]}

Baumann, T. ^{[6
]}

Bingham, C. R. ^{[1
]}

Darby, I. G. ^{[1
,9
]}

Ginter, T. N. ^{[6
]}

Ilyushkin, S. V. ^{[10
]}

Karny, M. ^{[7
]}

Krolas, W. ^{[3
,11
]}

Mantica, P. F. ^{[5
,6
]}

Miernik, K. ^{[7
]}

Pfuetzner, M. ^{[4
]}

Rykaczewski, K. P. ^{[4
]}

Weisshaar, D. ^{[6
]}

Winger, J. A. ^{[10
]}

机构：

[1] Univ Tennessee, Knoxville, TN 37996 USA

[2] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

[3] Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA

[4] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

[5] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA

[6] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[7] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland

[8] Oak Ridge Associated Univ, UNIRIB, Oak Ridge, TN 37831 USA

[9] Univ Liverpool, Oliver Lodge Lab, Dept Phys, Liverpool L69 7ZE, Merseyside, England

[10] Mississippi State Univ, Mississippi State, MS 39762 USA

[11] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland

来源：

PHYSICAL REVIEW C | 2012年 / 85卷 / 03期

关键词：

NUCLEAR-STRUCTURE; ELECTROMAGNETIC-TRANSITIONS; R-PROCESS; ISOTOPES; ISOMER; HINDRANCE; DISCOVERY; GAMMA;

D O I：

10.1103/PhysRevC.85.034326

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：

Low-energy excited states in Ni-71,Ni-73 populated via the eta decay of Co-71,Co-73 were investigated in an experiment performed at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU). Detailed analysis led to the construction of level schemes of Ni-71,Ni-73, which are interpreted using systematics and analyzed using shell-model calculations. The 5/2(-) states attributed to the the f(5/2) orbital and positive-parity 5/2(+) and 7/2(+) states from the g(9/2) orbital have been identified in both Ni-71,Ni-73. In Ni-71 the location of a 1/2(-) beta-decaying isomer is proposed, and limits are suggested as to the location of the isomer in Ni-73. The location of positive-parity cluster states are also identified in Ni-71,Ni-73. Beta-delayed neutron branching ratios obtained from this data are given for both Co-71,Co-73.

引用

页数：10

共 47 条

[1] The AME2003 atomic mass evaluation (II). Tables, graphs and references
Audi, G
Wapstra, AH
Thibault, C
[J]. NUCLEAR PHYSICS A, 2003, 729 (01) : 337 - 676
[2] Baglin C. M., 1997, Nuclear Data Sheets, V80, P1, DOI 10.1006/ndsh.1997.0001
[3] Bateman H, 1910, P CAMB PHILOS SOC, V15, P423
[4] Discovery of 40Mg and 42Al suggests neutron drip-line slant towards heavier isotopes
Baumann, T.
Amthor, A. M.
Bazin, D.
Brown, B. A.
Folden, C. M., III
Gade, A.
Ginter, T. N.
Hausmann, M.
Matos, M.
Morrissey, D. J.
Portillo, M.
Schiller, A.
Sherrill, B. M.
Stolz, A.
Tarasov, O. B.
Thoennessen, M.
[J]. NATURE, 2007, 449 (7165) : 1022 - 1024
[5] DISCOVERY OF NEUTRON-RICH CO AND FE ISOTOPES IN PU-239(NTH,F) - YIELDS AND HALF-LIVES
BERNAS, M
ARMBRUSTER, P
CZAJKOWSKI, S
FAUST, H
BOCQUET, JP
BRISSOT, R
[J]. PHYSICAL REVIEW LETTERS, 1991, 67 (26) : 3661 - 3664
[6] BETA-DECAY HALF-LIVES OF NEW NEUTRON-RICH CHROMIUM-TO-NICKEL ISOTOPES AND THEIR CONSEQUENCES FOR THE ASTROPHYSICAL R-PROCESS
BOSCH, U
SCHMIDTOTT, WD
TIDEMANDPETERSSON, P
RUNTE, E
HILLEBRANDT, W
LECHLE, M
THIELEMANN, FK
KIRCHNER, R
KLEPPER, O
ROECKL, E
RYKACZEWSKI, K
SCHARDT, D
KAFFRELL, N
BERNAS, M
DESSAGNE, P
KURCEWICZ, W
[J]. PHYSICS LETTERS B, 1985, 164 (1-3) : 22 - 26
[7] The 8+ isomer in 78Zn and the doubly magic character of 78Ni
Daugas, JM
Grzywacz, R
Lewitowicz, M
Achouri, L
Angélique, JC
Baiborodin, D
Bennaceur, K
Bentida, R
Béraud, R
Borcea, C
Bingham, C
Catford, WN
Emsallem, A
de France, G
Grawe, H
Jones, KL
Lemmon, RC
Jimenez, MJL
Nowacki, F
Santos, FD
Pfützner, M
Regan, PH
Rykaczewski, K
Sauvestre, JE
Sawicka, M
Sletten, G
Stanoiu, M
[J]. PHYSICS LETTERS B, 2000, 476 (3-4) : 213 - 218
[8] De Shalit A., 1974, Theoretical Nuclear Physics: Nuclear Structure
[9] Beta decay of 68-74Ni and level structure of neutron-rich Cu isotopes
Franchoo, S
Huyse, M
Kruglov, K
Kudryavtsev, Y
Mueller, WF
Raabe, R
Reusen, I
Van Duppen, P
Van Roosbroeck, J
Vermeeren, L
Wohr, A
Kratz, KL
Pfeiffer, B
Walters, WB
[J]. PHYSICAL REVIEW LETTERS, 1998, 81 (15) : 3100 - 3103
[10] Shell structure of nuclei far from stability
Grawe, H
Lewitowicz, M
[J]. NUCLEAR PHYSICS A, 2001, 693 (1-2) : 116 - 132

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