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Quenching of pairing gap at finite temperature in 184W

K. Kaneko·M. Hasegawa
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Abstract

We extract pairing gap in $^{184}$W at finite temperature for the first time from the experimental level densities of $^{183}$W, $^{184}$W, and $^{185}$W using "thermal" odd-even mass difference. We found the quenching of pairing gap near the critical temperature $T_c = 0.47$ MeV in the BCS calculations. It is shown that the monopole pairing model with a deformed Woods-Saxon potential explains the reduction of the pairing correlation using the partition function with the number parity projection in the static path approximation plus random-phase approximation.

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K. Kaneko, M. Hasegawa. 2005-07-27. Quenching of pairing gap at finite temperature in 184W. https://doi.org/10.1103/physrevc.72.024307

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