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arXiv 1503.00053nucl-th
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MiniBooNE和BNL运动学下费米气体模型外的中性流准弹性中微子散射

Neutral current quasielastic (anti)neutrino scattering beyond the Fermi gas model at MiniBooNE and BNL kinematics

M. V. Ivanov, A. N. Antonov, M. B. Barbaro, C. Giusti, A. Meucci, J. A. Caballero, R. Gonzalez-Jimenez, E. Moya de Guerra, J. M. Udias

摘要:

本文用一个真实的谱函数$S(p,E)$分析了中性流中微子在$^{12}$ C靶上的准弹性(反)散射截面,该谱函数根据($e,e'$)散射数据给出了一个标度函数。该谱函数采用Jastrow关联方法中的自然轨道(NOs)来描述核子-核子(NN)关联,并具有真实的能量依赖性。在所有计算中使用轴向质量$M_A= 1.032$ GeV的标准值。的作用的最终状态相互作用(FSI)的光谱和标度函数,以及对截面占。的MiniBooNE和BNL实验的经验数据的计算进行比较。我们的结果进行了分析比较,当NN相关不包括在内,也与其他理论方法的结果,如相对论费米气体(RFG),相对论平均场(RMF),相对论格林函数(RGF),以及与超标度方法(SuSA)的基础上分析准弹性电子散射。

英文摘要:

Neutral current quasielastic (anti)neutrino scattering cross sections on a $^{12}$C target are analyzed using a realistic spectral function $S(p,E)$ that gives a scaling function in accordance with the ($e,e'$) scattering data. The spectral function accounts for the nucleon-nucleon (NN) correlations by using natural orbitals (NOs) from the Jastrow correlation method and has a realistic energy dependence. The standard value of the axial mass $M_A= 1.032$ GeV is used in all calculations. The role of the final-state interaction (FSI) on the spectral and scaling functions, as well as on the cross sections is accounted for. A comparison of the calculations with the empirical data of the MiniBooNE and BNL experiments is performed. Our results are analyzed in comparison with those when NN correlations are not included, and also with results from other theoretical approaches, such as the relativistic Fermi gas (RFG), the relativistic mean field (RMF), the relativistic Green's function (RGF), as well as with the SuperScaling Approach (SuSA) based on the analysis of quasielastic electron scattering.

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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