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arXiv nucl-th/0101034nucl-th
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(e,e 'p)敲除反应中的相对论修正

Relativistic corrections in (e,e'p) knockout reactions

A. Meucci, C. Giusti, F. D. Pacati

摘要:

非相对论和相对论的描述(e,e 'p)反应之间的一致的比较。我们使用非相对论性的DWEEPY程序,从散射态的有效泡利约化和束缚态的相对论性平均场论出发,建立了一个完全相对论性的模型。比较了不同运动学条件下的~(16)O(e,e 'p)微分截面和结构函数的计算结果。能量的非相对论方法的有效性的限制。讨论了旋量畸变和有效动量近似对散射态的影响。与微分截面、结构函数和偏振观测值的数据取得了令人满意的一致。

英文摘要:

A consistent comparison between nonrelativistic and relativistic descriptions of the (e,e'p) reaction is presented. We use the nonrelativistic DWEEPY code and develop a fully relativistic model starting from the effective Pauli reduction for the scattering state and the relativistic mean field theory for the bound state. Results for the 16O(e,e'p) differential cross section and structure functions are compared in various kinematical conditions. A limit in energy of the validity of the nonrelativistic approach is established. The effects of spinor distortion and of the effective momentum approximation for the scattering state are discussed. A satisfactory agreement with data of differential cross sections, structure functions, and polarization observables is achieved.

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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