TY - JOUR
T1 - Rotational and pairing properties of 74Rb
AU - Dean, D. J.
AU - Koonin, S. E.
AU - Langanke, K.
AU - Radha, P. B.
N1 - Funding Information:
This work was supported in part by the National Science Foundation, Grants No. PHY94-1281 8 and PHY94-20470. Oak Ridge National Laboratory (ORNL) is managedb y Lockheed Martin Energy Re-searchC orp. for the US Departmento f Energy under
PY - 1997/4/24
Y1 - 1997/4/24
N2 - We use a cranked shell model Monte Carlo (SMMC) approach to study rotational properties and pair correlations in the odd-odd N = Z nucleus 74Rb. The calculation is performed in the complete 1p-0f5/2-0g9/2 model space with a residual interaction derived from the Paris potential. The calculated ground state is dominated by isovector J = 0 proton-neutron (pn) pairing. With increasing frequency the J = 0 pn correlations decrease to a constant value at around 〈J〉 = 3 ± 1.5(latin small letter h with stroke), while the isoscalar pn correlations (mainly J = 9) increase. Relatedly, the isospin decreases with frequency from its ground state value T = 1 as isoscalar correlations set in. This finding is in agreement with experiment, where at higher rotational frequency a T = 0 band becomes energetically favored over the T = 1 ground state band.
AB - We use a cranked shell model Monte Carlo (SMMC) approach to study rotational properties and pair correlations in the odd-odd N = Z nucleus 74Rb. The calculation is performed in the complete 1p-0f5/2-0g9/2 model space with a residual interaction derived from the Paris potential. The calculated ground state is dominated by isovector J = 0 proton-neutron (pn) pairing. With increasing frequency the J = 0 pn correlations decrease to a constant value at around 〈J〉 = 3 ± 1.5(latin small letter h with stroke), while the isoscalar pn correlations (mainly J = 9) increase. Relatedly, the isospin decreases with frequency from its ground state value T = 1 as isoscalar correlations set in. This finding is in agreement with experiment, where at higher rotational frequency a T = 0 band becomes energetically favored over the T = 1 ground state band.
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U2 - 10.1016/S0370-2693(97)00275-X
DO - 10.1016/S0370-2693(97)00275-X
M3 - Article
AN - SCOPUS:0001867291
SN - 0370-2693
VL - 399
SP - 1
EP - 7
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 - 1-2
ER -