Intrinsic electric quadrupole moment of the Kπ=8- isomeric state in 178Hf

被引：0

作者：

Zhu, S. ^{[1
,2
]}

机构：

[1] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA

[2] Argonne Natl Lab, Phys Div, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW C | 2020年 / 102卷 / 04期

关键词：

HYPERFINE-STRUCTURE; LASER SPECTROSCOPY; NUCLEAR; RADII; DECAY;

D O I：

10.1103/PhysRevC.102.044326

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：

The lifetime of the 9- state in the rotational band based on the 4.0 s, K-pi = 8(-), isomeric state (Hf-178(1)m) from the decay of the 31-yr isomer (Hf-178(m2)) was determined to be 99(2) ps by means of the fast-timing technique using two LaBr3(Ce) scintillators. The d(E2/M1) mixing ratios of the Delta I = 1 gamma rays depopulating levels in this band were deduced from gamma-gamma angular correlations by using a Hf-178(m2) radioactive source located at the center of the Gammasphere HPGe detector array. The new results, together with previous spectroscopic information, provide a different way to extract the intrinsic quadrupole moment of Q(0) = 6.45(14) eb for the Hf-178(m1) band. A possible explanation for the reduction of the Hf-178(m1) nuclear charge radius is presented.

引用

页数：5

共 28 条

[1] Nuclear Data Sheets for A=178
Achterberg, E.
Capurro, O. A.
Marti, G. V.
[J]. NUCLEAR DATA SHEETS, 2009, 110 (07) : 1473 - 1688
[2] On the decrease in charge radii of multi-quasi particle isomers
Bissell, M. L.
Flanagan, K. T.
Gardner, M. D.
Avgoulea, M.
Billowes, J.
Campbell, P.
Cheal, B.
Eronen, T.
Forest, D. H.
Huikari, J.
Jokinen, A.
Moore, I. D.
Nieminen, A.
Penttila, H.
Rinta-Antila, S.
Tordoff, B.
Tungate, G.
Aysto, J.
[J]. PHYSICS LETTERS B, 2007, 645 (04) : 330 - 334
[3] NUCLEAR PROPERTIES OF THE EXOTIC HIGH-SPIN ISOMER HF-178(M2) FROM COLLINEAR LASER SPECTROSCOPY
BOOS, N
LEBLANC, F
KRIEG, M
PINARD, J
HUBER, G
LUNNEY, MD
LEDU, D
MEUNIER, R
HUSSONNOIS, M
CONSTANTINESCU, O
KIM, JB
BRIANCON, C
CRAWFORD, JE
DUONG, HT
GANGRSKI, YP
KUHL, T
MARKOV, BN
OGANESSIAN, YT
QUENTIN, P
ROUSSIERE, B
SAUVAGE, J
[J]. PHYSICAL REVIEW LETTERS, 1994, 72 (17) : 2689 - 2692
[4] The shape transition in the neutron-rich yttrium isotopes and isomers
Cheal, B.
Gardner, M. D.
Avgoulea, M.
Billowes, J.
Bissell, M. L.
Campbell, P.
Eronen, T.
Flanagan, K. T.
Forest, D. H.
Huikari, J.
Jokinen, A.
Marsh, B. A.
Moore, I. D.
Nieminen, A.
Penttila, H.
Rinta-Antila, S.
Tordoff, B.
Tungate, G.
Aysto, J.
[J]. PHYSICS LETTERS B, 2007, 645 (2-3) : 133 - 137
[5] 4 QUASIPARTICLE HF-178 ISOMERIC STATE, ITS EXCITATION-ENERGY AND MULTIPOLARITIES OF DE-EXCITING TRANSITIONS
DEBOER, FWN
GOUDSMIT, PFA
MEIJER, BJ
KAPTEYN, JC
KONIJN, J
KAMERMANS, R
[J]. NUCLEAR PHYSICS A, 1976, 263 (03) : 397 - 409
[6] Moments of inertia for multiquasiparticle configurations -: art. no. 064324
Frauendorf, S
Neergård, K
Sheikh, JA
Walker, PM
[J]. PHYSICAL REVIEW C, 2000, 61 (06): : 7
[7] Laser spectroscopy of high spin isomers - a review
Gangrsky, Yu.
[J]. HYPERFINE INTERACTIONS, 2006, 171 (1-3): : 203 - 208
[8] Laser spectroscopy investigation of the nuclear moments and radii of lutetium isotopes
Georg, U
Borchers, W
Keim, M
Klein, A
Lievens, P
Neugart, R
Neuroth, M
Rao, PM
Schulz, C
[J]. EUROPEAN PHYSICAL JOURNAL A, 1998, 3 (03) : 225 - 235
[9] Spin dependence of K mixing, strong configuration mixing, and electromagnetic properties of 178Hf
Hayes, A. B.
Cline, D.
Wu, C. Y.
Ai, H.
Amro, H.
Beausang, C.
Casten, R. F.
Gerl, J.
Hecht, A. A.
Heinz, A.
Hua, H.
Hughes, R.
Janssens, R. V. F.
Lister, C. J.
Macchiavelli, A. O.
Meyer, D. A.
Moore, E. F.
Napiorkowski, P.
Pardo, R. C.
Schlegel, Ch.
Seweryniak, D.
Simon, M. W.
Srebrny, J.
Teng, R.
Vetter, K.
Wollersheim, H. J.
[J]. PHYSICAL REVIEW C, 2007, 75 (03):
[10] DECAY OF AN ISOMERIC STATE IN 178HF WITH K ]= 16
HELMER, RG
REICH, CW
[J]. NUCLEAR PHYSICS A, 1968, A114 (03) : 649 - &

← 1 2 3 →