Band structure in [sup 79]Y and the question of T=0 pairing

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ID: 272162
1999
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Abstract
Excited states in the N=Z+1 nucleus 79Y were identified using the reaction 28Si(54Fe,p2n)79Y at a 200 MeV beam energy and an experimental set up consisting of an array of Gedetectors and the Recoil Mass Spectrometer at Oak Ridge National Laboratory. With the help of additional γ-γ coincidence data obtained with Gammasphere, these γ-rays were found to form a strongly-coupled rotational band with rigid-rotor-like behavior. Results of conventional Nilsson-Strutinsky cranked shell model calculations, which predict a deformation of β2∼0.4, are in excellent agreement with the properties of this band. Similar calculations for the neighboring N=Z and N=Z+1 nuclei are also in good agreement with experimental data. This suggests that the presence of the putative T=0 neutron-proton pairing does not significantly affect such simple observables as the moments of inertia of these bands at low spins.
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Authors S. D. Paul,C. Baktash,W. Satuła,C. J. Gross,I. Birriel,R. M. Clark,R. A. Cunningham,M. Devlin,P. Fallon,A. Galindo-Uribarri,T. Ginter,D. R. Lafosse,J. Kay,F. Lerma,I. Y. Lee,C. Leyland,A. O. Macchiavelli,B. D. Macdonald,S. J. Metcalfe,A. Piechaczek,D. C. Radford,W. Reviol,L. L. Riedinger,D. Rudolph,K. Rykaczewski,D. G. Sarantites,J. X. Saladin,D. Shapira,G. N. Sylvan,S. L. Tabor,K. S. Toth,W. Weintraub,D. F. Winchell,V. Q. Wood,R. Wyss,C. H. Yu;S. D. Paul;C. Baktash;W. Satuła;C. J. Gross;I. Birriel;R. M. Clark;R. A. Cunningham;M. Devlin;P. Fallon;A. Galindo-Uribarri;T. Ginter;D. R. Lafosse;J. Kay;F. Lerma;I. Y. Lee;C. Leyland;A. O. Macchiavelli;B. D. Macdonald;S. J. Metcalfe;A. Piechaczek;D. C. Radford;W. Reviol;L. L. Riedinger;D. Rudolph;K. Rykaczewski;D. G. Sarantites;J. X. Saladin;D. Shapira;G. N. Sylvan;S. L. Tabor;K. S. Toth;W. Weintraub;D. F. Winchell;V. Q. Wood;R. Wyss;C. H. Yu;
Journal AIP Conference Proceedings
Year 1999
DOI 10.1063/1.59547
URL
https://sciprofiles.com/publication/view/a1000e0be1756638dce583d994f69db0
Keywords
nuclear fusion neutrons protons moment of inertia energy levels heavy ion-nucleus scattering nuclei with mass number 59 to 89 gamma-ray spectra nuclear shell model iron 54 target silicon 28 reactions yttrium 79

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