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arXiv 2104.12923hep-ph
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根据高能对撞机数据衍射散射的么正化依赖性

Unitarisation dependence of diffractive scattering in light of high-energy collider data

Arno Vanthieghem, Atri Bhattacharya, Rami Oueslati, Jean-René Cudell

摘要:

我们研究的后果,高能对撞机数据的最佳拟合总,弹性,非弹性,和单衍射截面$pp$和$p \bar{p}$散射使用不同的unitarisation计划。我们发现Eikonal和U-矩阵方案都能很好地拟合数据,但衍射数据更喜欢U-矩阵。这两种方案都可以通过一个额外的参数来推广;然而,这只会对拟合产生边际改进。我们提供了估计$ρ$,弹性振幅的实部与虚部之比,为不同的拟合。我们评论的不同计划对现在和未来的宇宙射线数据的影响。

英文摘要:

We study the consequences of high-energy collider data on the best fits to total, elastic, inelastic, and single-diffractive cross sections for $pp$ and $p \bar{p}$ scattering using different unitarisation schemes. We find that the data are well fitted both by eikonal and U-matrix schemes, but that diffractive data prefer the U-matrix. Both schemes may be generalised by means of an additional parameter; however, this yields only marginal improvements to the fits. We provide estimates for $ρ$, the ratio of the real part to the imaginary part of the elastic amplitude, for the different fits. We comment on the effect of the different schemes on present and future cosmic ray data.

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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