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arXiv 2602.23642nucl-th
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有限温度下的粒子数投影能

Particle number projected energies at finite temperature

Peking University(北京大学)

Jiawei Chen, Yu Qiang, Junchen Pei

AI总结:

本研究在有限温度下通过粒子数投影方法计算复合核的能,并分析了临界温度对裂变势垒的影响。

摘要:

在本工作中,将有限温度下的粒子数投影纳入自洽Skyrme密度泛函计算中。特别是,基于投影密度,严格计算了复合核的能随变形变化的情况。结果表明,随着系统接近临界温度,配分函数中的偶奇震荡效应逐渐减弱。获得的裂变势垒与无投影情况下相同,尽管投影能不同。还利用投影方法和离散高斯方法研究了基态核的密度和势垒。

英文摘要:

In this work, the particle number projection at finite temperature is incorporated into self-consistent Skyrme density functional calculations. In particular, the energies of compound nuclei as a function of deformations are calculated rigorously based on projected densities. Results show that the even-odd staggering effect in partition function gradually diminishes as the system approaches the critical temperature. The obtained fission barriers are similar to that without projection at finite temperature, although projected energies are different. The nuclear level density at the ground state and the barrier are also studied using the projection method and the discrete Gaussian method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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