Lifetime measurements in sup 135 Sm: Large deformation in the N =6 intruder band and evidence for quenched proton pairing

Journal Article · Thu Nov 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

OSTI ID:6254281

Regan, P H; Wyss, R; Wadsworth, R; Fossan, D B; He, Y; Hughes, J R; Jenkins, I; Ma, R; Metcalf, M S; Mullins, S M; Nolan, P J; Paul, E S; Poynter, R J; Xu, N ^[1]

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1. Department of Physics, University of York, Heslington, York (United Kingdom) Manne Siegbahn Institute of Physics, Frescativagen 24, Stockholm (Sweden) Royal Institute of Technology, Physics Department I, S-10444 Stockholm (Sweden) Department of Physics, State University of New York, Stony Brook, NY (USA) Oliver Lodge Laboratory, University of Liverpool, Liverpool (United Kingdom)

The quadrupole moment of the highly deformed band built upon the {ital i}{sub 13/2} neutron intruder orbital in {sup 135}Sm has been measured, using the Doppler shift attenuation method and Braune stopping powers, to be 7.0{plus minus}0.7 {ital e} b. These data provide strong evidence that this high-{ital j}, {ital N}=6 intruder orbital is responsible for the highly deformed states seen in this region. The result is compared to total Routhian surface calculations. A possible explanation for the observed anomalous behavior of the {ital J}{sup (2)} moment of inertia in this nucleus is discussed in terms of quenched static proton pair correlations.

• OSTI ID: 6254281
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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