Heat capacity and pairing transition in nuclei
نویسندگان
چکیده
منابع مشابه
Signature of a Pairing Transition in the Heat Capacity of Finite Nuclei
The heat capacity of iron isotopes is calculated within the interacting shell model using the complete (pf + 0g9/2)-shell. We identify a signature of the pairing transition in the heat capacity that is correlated with the suppression of the number of spin-zero neutron pairs as the temperature increases. Our results are obtained by a novel method that significantly reduces the statistical errors...
متن کاملPairing transition of nuclei at finite temperature
Pairing transition at finite temperature was investigated by the shell model and BCS calculations. The definitive signature of pairing transition is identified by a “transition temperature” Tt estimated from a “thermal” odd-even mass difference, while there is no sharp phase transition because of the finiteness of nucleus. It is found that Tt is in good agreement with predictions of critical te...
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The liquid-gas phase transition in finite nuclei is studied in a heated liquid-drop model where the nuclear drop is assumed to be in thermodynamic equilibrium with its own evaporated nucleonic vapor conserving the total baryon number and isospin of the system. It is found that in the liquid-vapor coexistence region the pressure is not a constant on an isotherm indicating that the transition is ...
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A fundamental problem of glass transition is to provide a quantitative and microscopic explanation of the heat-capacity jump at the glass transition temperature Tg . Similar problems are also common to other disordered systems, including spin glasses. We propose that the jump of heat capacity at Tg takes place as a result of the change of the liquid’s elastic, vibrational, and thermal propertie...
متن کاملPairing Correlations in Halo Nuclei
Paring correlations in weakly bound halo nuclei He and Li are studied by using a threebody model with a density-dependent contact interaction. We investigate the spatial structure of two-neutron wave function in a Borromean nucleus Li. The behavior of the neutron pair at different densities is simulated by calculating the two-neutron wave function at several distances between the core nucleus L...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2001
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.64.034319