An exponential mass spectrum, like the Hagedorn spectrum, with slope 1/T_H was interpreted as fixing an upper limiting temperature T_Hthat the system can achieve. However, thermodynamically, such spectrum indicates a 1~(st) order phase transition at a fixed temperature T_H. A much lower energy example is the log linear level nuclear density below the neutron binding energy that prevails throughout the nuclear chart. We show that, for non-magic nuclei, such linearity implies a 1~(st) order phase transition from the pairing superfluid to an ideal gas of quasi particles.
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机译：与Hypage Order 1 / T_h的相同的指数质谱被解释为固定系统可以实现的上限温度T_HTHT。然而，在热力学上，这种光谱表示固定温度T_H的1〜（ST）阶跃相位转变。更低的能量例子是在整个核图表中占中子结合能量下方的日志线性水平核密度。我们表明，对于非魔术核，这种线性地意味着从配对超流中的1〜（ST）顺序转移到准粒子的理想气体。
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