Novel applications of the dispersive optical model
Novel applications of the dispersive optical model
复制标题
色散光学模型的新应用
DOI：
--
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
M. Mahzoon
中科院分区：
文献类型：
--
作者：
W. H. Dickhoff;R. Charity;M. Mahzoon
综述了近年来色散光学模型（DOM）的研究进展。从Mahaux和Sartor的原始工作开始，开发并说明了几个必要的步骤，这些步骤增加了DOM的范围，允许其解释为产生核子自能的实验约束功能形式。因此，该方法可更名为色散自能法。
上述步骤包括引入同位素链或等音链数据的同时拟合，允许数据驱动的外推，以预测各自滴注线方向的散射截面和水平特性。此外，数据的能量域被扩大到包括高达200mev的结果。利用这些DOM势，利用绝热畸变波近似（ADWA）对\textit{（d,p）}转移反应进行了分析，实现了这项工作的一个重要应用。
我们回顾了与${}^{40}$ Ca拟合的完全非局部DOM势，其中包括杰弗逊实验室获得的弹性散射数据，能级信息，粒子数，电荷密度和高动量去除$(e,e'p)$截面。这项新分析的一个重要结果是，该原子核中价质子去除的光谱因子比NIKHEF对$(e,e'p)$数据的分析结果大0.15左右。这种分析的另一个重要结果是，它可以通过应用能量和规则来阐明两体和三体相互作用对基态能量的贡献的相对重要性。
A review of recent developments of the dispersive optical model (DOM) is presented. Starting from the original work of Mahaux and Sartor, several necessary steps are developed and illustrated which increase the scope of the DOM allowing its interpretation as generating an experimentally constrained functional form of the nucleon self-energy. The method could therefore be renamed as the dispersive self-energy method.
The aforementioned steps include the introduction of simultaneous fits of data for chains of isotopes or isotones allowing a data-driven extrapolation for the prediction of scattering cross sections and level properties in the direction of the respective drip lines. In addition, the energy domain for data was enlarged to include results up to 200 MeV where available. An important application of this work was implemented by employing these DOM potentials to the analysis of the (\textit{d,p}) transfer reaction using the adiabatic distorted wave approximation (ADWA).
We review the fully non-local DOM potential fitted to ${}^{40}$Ca where elastic-scattering data, level information, particle number, charge density and high-momentum-removal $(e,e'p)$ cross sections obtained at Jefferson Lab were included in the analysis. An important consequence of this new analysis is the finding that the spectroscopic factor for the removal of valence protons in this nucleus comes out larger by about 0.15 than the results obtained from the NIKHEF analysis of their $(e,e'p)$ data. Another important consequence of this analysis is that it can shed light on the relative importance of two-body and three-body interactions as far as their contribution to the energy of the ground state is concerned through application of the energy sum rule.
使用 132Sn 放射性离子束进行直接反应测量
DOI：
10.48550/arxiv.1105.4755
发表时间：
2011
期刊：
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影响因子：
--
作者：
Jones K
通讯作者：
Jones K
影响因子：
3.1
作者：
Carbone, Arianna;Cipollone, Andrea;Polls, Artur
通讯作者：
Polls, Artur