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arXiv 0907.0951hep-ph
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核子-核子弹性散射的斜率分析

Slope analysis for elastic nucleon-nucleon scattering

V. A. Okorokov

摘要:

本文根据已有的实验数据,研究了质子-质子和质子-反质子弹性散射的衍射斜率参数。能量依赖的弹性衍射斜率近似的各种解析函数。扩展的“标准”对数近似与最少的自由参数允许合理地描述所有可用的能量范围内的实验斜率。基于所有可用的实验数据,获得了各个$|t|$域的渐近收缩参数$α'_{\cal{P}}$的估计。各种近似在低能量和非常高的能量域中彼此不同。给出了NICA、RHIC和LHC能区质子-质子弹性散射和FAIR能区质子-反质子弹性反应在各种近似函数下的衍射斜率参数的预测。

英文摘要:

The diffraction slope parameter is investigated for elastic proton-proton and proton-antiproton scattering based on the all available experimental data at low and intermediate momentum transfer values. Energy dependence of the elastic diffraction slopes is approximated by various analytic functions. The expanded "standard" logarithmic approximations with minimum number of free parameters allow to describe experimental slopes in all available energy range reasonably. The estimations of asymptotic shrinkage parameter $α'_{\cal{P}}$ were obtained for various $|t|$ domains based on the all available experimental data. Various approximations differ from each other both in the low energy and very high energy domains. Predictions for diffraction slope parameter are obtained for elastic proton-proton scattering at NICA, RHIC and LHC energies, for proton-antiproton elastic reaction in FAIR energy domain for various approximation functions.

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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