微扰近似下核物质的动量分布
核理论
2008-11-26 v1
摘要
表明在标准微扰2p2h方法中为避免空穴态耗尽约束被破坏而引入的归一化修正，导致核物质中动量分布依赖于核子总数。这种非物理行为反过来使耗尽不具有广延性，它源于归一化中包含的不连通图贡献。发现当基态中包含4p4h激发时，广延性再次恢复，并得到了 Fermi 能级之上被提升的核子总数的合理值。
引用
@article{arxiv.nucl-th/9512042,
title = {Momentum Distribution in Nuclear matter within a Perturbation Approximation},
author = {A. Mariano and F. Krmpotic and A. F. R de Toledo Piza},
journal= {arXiv preprint arXiv:nucl-th/9512042},
year = {2008}
}
备注
11 pages, LaTeX, 5 figures, figures 1 to 3 included in the latex file, postscript files of figures 4 and 5 available from the Authors. Accepted for publication in Phys. Rev. C