Single particle signatures in high-spin, quasi continuum states in ^193,194 Hg from g-factor measurements

TY - JOUR

T1 - Single particle signatures in high-spin, quasi continuum states in 193,194 Hg from g-factor measurements

AU - Weissman, L.

AU - Mayer, R. H.

AU - Kumbartzki, G.

AU - Benczer-Koller, N.

AU - Broude, C.

AU - Cizewski, J. A.

AU - Hass, M.

AU - Holden, J.

AU - Janssens, R. V.F.

AU - Lauritsen, T.

AU - Lee, I. Y.

AU - Macchiavelli, A. O.

AU - McNabb, D. P.

AU - Satteson, M.

N1 - Funding Information: The authors would like to thank J. Dudek and W. Nazarewicz for stimulating discussions. Thanks are due to L. Sapir and J. Greene for target preparation, to B. Elkonin for the design of the cooling system, to R. McLeod for assistance with the data acquisition system and to the staff of the 88” Cyclotron for their help during the experiment. This work was supported in part by the US National Science Foundation, the Israel – US Binational Science Foundation and the US Department of Energy, Nuclear Physics Division, under contract Nos. W-31-109-ENG-38 (ANL) and DE-AC03-765F00098 (LBNL).

PY - 1999

Y1 - 1999

N2 - The average g factors of high spin, high-excitation energy, quasi continuum structures in 194,193Hg were measured by observing the precessions of the angular distributions of γ-ray transitions in several normal-deformation bands that coalesce in the decay of the entry distribution of states. The average g factors of the states leading to the three main bands in the 193,194Hg isoles were: 〈g(193Hg)〉 = +0.19(1) and 〈g(194Hg)〉 = +0.26(1), respectively. These average g factors are smaller than the average of the g factors of the high energy states in the three superdeformed bands of 194Hg, 〈g(SD;194Hg)〉 = +0.41(8). While the nucleus in the superdeformed well behaves like a rigid rotor, the present results demonstrate the important role played by multiple, quasi particle neutron configurations in the structure of normal-deformation, highly-excited nuclear states.

AB - The average g factors of high spin, high-excitation energy, quasi continuum structures in 194,193Hg were measured by observing the precessions of the angular distributions of γ-ray transitions in several normal-deformation bands that coalesce in the decay of the entry distribution of states. The average g factors of the states leading to the three main bands in the 193,194Hg isoles were: 〈g(193Hg)〉 = +0.19(1) and 〈g(194Hg)〉 = +0.26(1), respectively. These average g factors are smaller than the average of the g factors of the high energy states in the three superdeformed bands of 194Hg, 〈g(SD;194Hg)〉 = +0.41(8). While the nucleus in the superdeformed well behaves like a rigid rotor, the present results demonstrate the important role played by multiple, quasi particle neutron configurations in the structure of normal-deformation, highly-excited nuclear states.

KW - Hg

KW - High spin

KW - Normal deformation structures

KW - g factors

UR - https://www.scopus.com/pages/publications/0001871946

UR - https://www.scopus.com/pages/publications/0001871946#tab=citedBy

U2 - 10.1016/S0370-2693(98)01514-7

DO - 10.1016/S0370-2693(98)01514-7

M3 - Article

SN - 0370-2693

VL - 446

SP - 22

EP - 27

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1

ER -