论文标题
从对所有可用e-$^{12} $ c和e-$^{16} $横截面数据的分析中提取库仑总规则,横向增强和纵向淬火
Extraction of the Coulomb Sum Rule, Transverse Enhancement, and Longitudinal Quenching from an Analysis of all Available e-$^{12}$C and e-$^{16}$O Cross Section Data
论文作者
论文摘要
我们在$ {\ rm ^{12} c} $(约6600个差分横截面测量值)以及$ {\ rm ^{16} o} $(大约250个测量值)上,对所有可用的电子散射数据进行了现象分析。所有QE和非弹性横截面测量值都包括在最低动量转移$ \ bf Q $(包括照片生产数据)中。我们发现,在低$ \ bf q $(除了Pauli Blocking之外),我们发现横向QE响应函数($ r_t^{qe} $)和QE纵向响应功能($ r_l^{qe} $)的淬灭。我们提取$乘法$ low $ \ bf q $“纵向淬灭因子”和$添加$“横向增强”贡献的参数化。此外,我们发现核国家的激发对库仑和$ sl({\ bf q})$造成了显着贡献(最多30 \%)。我们提取$ SL({\ bf Q})$的最准确的确定,并发现它与最近的理论计算是合理的一致性。
We report on a phenomenological analysis of all available electron scattering data on ${\rm ^{12}C}$ (about 6600 differential cross section measurements) and on ${\rm ^{16}O}$ (about 250 measurements) within the framework of the quasielastic (QE) superscaling model (including Pauli blocking). All QE and inelastic cross section measurements are included down to the lowest momentum transfer $\bf q$ (including photo-production data). We find that there is enhancement of the transverse QE response function ($R_T^{QE}$) and quenching of the QE longitudinal response function ($R_L^{QE}$) at low $\bf q$ (in addition to Pauli blocking). We extract parameterizations of a $multiplicative$ low $\bf q$ "Longitudinal Quenching Factor" and an $additive$ "Transverse Enhancement" contribution. Additionally, we find that the excitation of nuclear states contribute significantly (up to 30\%) to the Coulomb Sum Rule $SL({\bf q})$. We extract the most accurate determination of $SL({\bf q})$ to date and find it to be in reasonable agreement with recent theoretical calculations.