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arXiv 2602.00734hep-ph
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对13 TeV时ATLAS pp弹性测量的分析及与TOTEM测量的比较

Analysis of ATLAS pp elastic measurements at $\sqrt{s}$=13 TeV and comparison with TOTEM measurements

Universidade Federal do Rio de Janeiro(里约热内卢联邦大学);Universidade Federal Fluminense(弗鲁米嫩塞联邦大学);École Polytechnique(巴黎综合理工学院)

E. Ferreira, T. Kodama, A. K. Kohara

AI总结:

本文比较了ATLAS和TOTEM在13 TeV时pp弹性散射的测量,发现两者在物理上无差异,仅归一化不同,并揭示了实幅和虚幅的零点特性对ρ参数的影响。

摘要:

对LHC上13 TeV时pp弹性散射测量的ATLAS和TOTEM合作组的测量进行了比较描述。在总截面和微分截面中,我们表明差异可以通过单一数值因子来解释。似乎没有根本的物理差异,只是两个实验之间的归一化问题。我们研究了通过KFK(Kohara-Ferreira-Kodama)模型分离的实幅和虚幅,并显示两种实验在定性方面有相似的性质。实部和虚部在原点处有不同的斜率并呈现零点,其分布与多种模型相似,实部有三个零点,虚幅有一个零点。实部中的零点,即Martin零点,影响了ρ参数的确定。

英文摘要:

A comparative description is made of the measurements at LHC of pp elastic scattering at 13 TeV by the ATLAS and TOTEM Collaborations. In the total and differential cross sections we show that the differences are justified through single numerical factor. It seems that there is no fundamental physical difference, but only a difference of normalization between the two experiments. We study the real and imaginary amplitudes disentangled with the KFK (Kohara-Ferreira-Kodama) model and show that the properties are similar in qualitative aspects for both experiments. The real and imaginary parts have different slopes at the origin and present zeros, with distributions that are common to several models, with three zeros in the real part and one zero in the imaginary amplitude. A zero in the real part, known as Martin's zero, influences the determination of the $ρ$ parameter.

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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