Direct Lifetime Measurements of the Excited States in 72Ni

被引：20

作者：

Kolos, K. ^{[1
,2
]}

Miller, D. ^{[3
]}

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

Iwasaki, H. ^{[5
,6
]}

Al-Shudifat, M. ^{[1
]}

Bazin, D. ^{[5
]}

Bingham, C. R. ^{[1
,4
]}

Braunroth, T. ^{[7
]}

Cerizza, G. ^{[1
]}

Gade, A. ^{[5
,6
]}

Lemasson, A. ^{[5
]}

Liddick, S. N. ^{[5
,8
]}

Madurga, M. ^{[1
]}

Morse, C. ^{[5
,6
]}

Portillo, M. ^{[5
]}

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

Recchia, F. ^{[5
]}

Riedinger, L. L. ^{[1
,4
]}

Voss, P. ^{[9
]}

Walters, W. B. ^{[10
]}

Weisshaar, D. ^{[5
]}

Whitmore, K. ^{[5
,6
]}

Wimmer, K. ^{[11
]}

Tostevin, J. A. ^{[12
]}

机构：

[1] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[3] TRIUMF, 4004 Westbrook Mall, Vancouver, BC V6T 2A3, Canada

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

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

[6] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[7] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

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

[9] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

[10] Univ Maryland, College Pk, MD 20742 USA

[11] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA

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

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 12期

基金：

美国国家科学基金会;

关键词：

ISOMERS; NUCLEI; TOOL;

D O I：

10.1103/PhysRevLett.116.122502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The lifetimes of the first excited 2(+) and 4(+) states in Ni-72 were measured at the National Superconducting Cyclotron Laboratory with the recoil-distance Doppler-shift method, a model-independent probe to obtain the reduced transition probability. Excited states in Ni-72 were populated by the one-proton knockout reaction of an intermediate energy Cu-73 beam. gamma-ray-recoil coincidences were detected with the gamma-ray tracking array GRETINA and the S800 spectrograph. Our results provide evidence of enhanced transition probability B(E2; 2(+) -> 0(+)) as compared to Ni-68, but do not confirm the trend of large B(E2) values reported in the neighboring isotope Ni-70 obtained from Coulomb excitation measurement. The results are compared to shell model calculations. The lifetime obtained for the excited 4(1)(+) state is consistent with models showing decay of a seniority nu = 4, 4(+) state, which is consistent with the disappearance of the 8(+) isomer in Ni-72.

引用

页数：5

共 50 条

[21] LIFETIME MEASUREMENTS AT SELECTIVELY EXCITED-STATES OF DIATOMIC HYDRIDES
BECKER, KH
HAAKS, D
TATARCZYK, T
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1974, 78 (11): : 1157 - 1160
[22] LIFETIME MEASUREMENTS OF EXCITED-STATES IN K-38
HASPER, H
SMITH, PB
PHYSICAL REVIEW C, 1973, 8 (06): : 2240 - 2244
[23] LIFETIME MEASUREMENTS OF CUBR AND CUI EXCITED-STATES - IDENTIFICATION OF THE ELECTRONIC STATES
LEFEBVRE, Y
DELAVAL, JM
BERNAGE, P
NIAY, P
CHEMICAL PHYSICS LETTERS, 1987, 139 (02) : 212 - 214
[24] LIFETIME MEASUREMENTS OF HIGH-SPIN STATES IN SE-72
CROWELL, HL
HAMILTON, JH
ROBINSON, RL
RAMAYYA, AV
COLLINS, WE
PINKSTON, WT
RONNINGEN, RM
SINGHAL, NC
KIM, HJ
SAYER, RO
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1975, 20 (06): : 830 - 830
[25] DIRECT MEASUREMENTS OF LIFETIMES OF EXCITED STATES OF NEUTRAL HELIUM
FOWLER, RG
JACOBSON, CH
HOLZBERLEIN, TM
CORRIGAN, SJ
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1964, 84 (5404): : 539 - &
[26] LIFETIME MEASUREMENTS OF HIGHLY EXCITED RYDBERG STATES OF STRONTIUM-I
KUNZE, S
HOHMANN, R
KLUGE, HJ
LANTZSCH, J
MONZ, L
STENNER, J
STRATMANN, K
WENDT, K
ZIMMER, K
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1993, 27 (02): : 111 - 114
[27] MEAN LIFETIME MEASUREMENTS FOR EXCITED-STATES IN LANTHANUM 135 AND 133
BERG, V
BOURGEOIS, C
FOUCHER, R
LETESSIER, J
JOURNAL DE PHYSIQUE, 1972, 33 (10): : 829 - +
[28] Lifetime measurements of first excited states in 16,18C
Ong, H. J.
Imai, N.
Suzuki, D.
Iwasaki, H.
Sakurai, H.
Onishi, T. K.
Suzuki, M. K.
Ota, S.
Takeuchi, S.
Nakao, T.
Togano, Y.
Kondo, Y.
Aoi, N.
Baba, H.
Bishop, S.
Ichikawa, Y.
Ishihara, M.
Kubo, T.
Kurita, K.
Motobayashi, T.
Nakamura, T.
Okumura, T.
Yanagisawa, Y.
PHYSICAL REVIEW C, 2008, 78 (01):
[29] LIFETIME MEASUREMENTS FOR FIRST 5 EXCITED STATES IN S-33
KAVANAGH, RW
MERDINGER, JC
SCHULZ, N
NUCLEAR PHYSICS A, 1970, A146 (02) : 410 - +
[30] LIFETIME MEASUREMENTS OF SOME EXCITED STATES OF NITROGEN NITRIC OXIDE + FORMALDEHYDE
JEUNEHOMME, M
DUNCAN, ABF
JOURNAL OF CHEMICAL PHYSICS, 1964, 41 (06): : 1692 - &

← 1 2 3 4 5 →