Entropy Driven Excitation Energy Sorting in Superfluid Fission Dynamics

被引：116

作者：

Schmidt, Karl-Heinz ^{[1
]}

Jurado, Beatriz ^{[1
]}

机构：

[1] CEN Bordeaux Gradignan, CNRS IN2P3, F-33175 Gradignan, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 21期

关键词：

NEUTRON-INDUCED FISSION; PROTON-INDUCED FISSION; NUCLEAR-FISSION; MODEL; SCISSION; DEFORMATION; EMISSION; MASSES; U-238;

D O I：

10.1103/PhysRevLett.104.212501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that the constant-temperature behavior of nuclei in the superfluid regime leads to an energy-sorting process if two nuclei are in thermal contact, as is the case in the fission process. This effect explains why an increase of the initial excitation energy leads an increase of the number of emitted neutrons from the heavy fission fragment, only. The observed essentially complete energy sorting may be seen as a new counterintuitive manifestation of quantum-mechanical properties of microscopic systems.

引用

页数：4

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