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تسجيل مستخدم جديدThermodynamic Properties of $^{56,57}$Fe
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Nuclear level densities for $^{56,57}$Fe have been extracted from the primary $gamma$-ray spectra using ($^3$He,$^3$He$^{prime}gamma$) and ($^3$He,$alpha gamma$) reactions. Nuclear thermodynamic properties for $^{56}$Fe and $^{57}$Fe are investigated using the experimental level densities. These properties include entropy, Helmholtz free energy, caloric curves, chemical potential, and heat capacity. In particular, the breaking of Cooper pairs and single-quasiparticle entropy are discussed and shown to be important concepts for describing nuclear level density. Microscopic model calculations are performed for level densities of $^{56,57}$Fe. The experimental and calculated level densities are compared. The average number of broken Cooper pairs and the parity distribution are extracted as a function of excitation energy for $^{56,57}$Fe from the model calculations.
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