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arXiv 1102.5028hep-phhep-ex
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弹性质子-质子散射的模型无关数据简化

Model-independent data reductions of elastic proton-proton scattering

D. A. Fagundes, M. J. Menon, G. L. P. Silva

摘要:

本文报道了高能质子-质子微分截面实验分析的新进展。利用无约束的散射振幅的模型无关参数化和两种不同的拟合方法,很好地描述了质心能量区间19.4 - 62.5 GeV的所有实验数据(光学点和库仑核干涉区以上的数据)。讨论了振幅的实部和虚部在正向以外的贡献,并与以前的分析和唯象模型的结果进行了比较。提取的重叠功能(碰撞参量空间)的概述和独立于模型的分析和结果的关键讨论。

英文摘要:

New developments in empirical analyses of the proton-proton differential cross section data at high energies are reported. Making use of an unconstrained model-independent parametrization for the scattering amplitude and two different fit procedures, all the experimental data in the center-of-mass energy interval 19.4 - 62.5 GeV are quite well described (optical point and data above the region of Coulomb-nuclear interference). The contributions from the real and imaginary parts of the amplitude beyond the forward direction are discussed and compared with the results from previous analyses and phenomenological models. Extracted overlap functions (impact parameter space) are outlined and a critical discussion on model-independent analyses and results are also presented.

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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