Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-01-30
Nucl.Phys. A602 (1996) 244-262
Physics
Nuclear Physics
Nuclear Theory
RevTeX and ps figures
Scientific paper
10.1016/0375-9474(96)00139-X
We use the shell model Monte Carlo approach to study thermal properties and pair correlations in $^{54,56,58}$Fe and in $^{56}$Cr. The calculations are performed with the modified Kuo-Brown interaction in the complete $1p0f$ model space. We find generally that the proton-proton and neutron-neutron $J=0$ pairing correlations, which dominate the ground state properties of even-even nuclei, vanish at temperatures around 1 MeV. This pairing phase transition is accompanied by a rapid increase in the moment of inertia and a partial unquenching of the M1 strength. We find that the M1 strength totally unquenches at higher temperatures, related to the vanishing of isoscalar proton-neutron correlations, which persist to higher temperatures than the pairing between like nucleons. The Gamow-Teller strength is also correlated to the isoscalar proton-neutron pairing and hence also unquenches at a temperature larger than that of the pairing phase transition.
Dean David J.
Koonin Steven E.
Langanke Karlheinz
Radha P. B.
No associations
LandOfFree
Temperature Dependence of Pair Correlations in Nuclei in the Iron-Region does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Temperature Dependence of Pair Correlations in Nuclei in the Iron-Region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature Dependence of Pair Correlations in Nuclei in the Iron-Region will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-277345