论文标题
PP弹性散射的振幅和差分横截面的分析表示13 TEV
Analytical representation for amplitudes and differential cross section of pp elastic scattering at 13 TeV
论文作者
论文摘要
通过在较低能量引入和测试的PP散射幅度的分析表示中，对$dσ/dt $数据的描述描述了$ \ sqrt {s} $ = 13 tev的$dσ/dt $数据，用于动量转移的所有值，并明确地识别了真实和想象的零件。在$ t $和$ b $的坐标中，幅度的术语均以非扰动和扰动性质确定，并且在远期和大型$ | t | $范围内以及中央和外围地区的影响分别具有区别。在正向范围内，研究了库仑 - 核干扰阶段的作用。审查和更新了振幅参数的能量依赖性，揭示了B空间中弹性和非弹性曲线在中心碰撞中的特殊行为的出现，这似乎在较高的能量下很快增强。比较还简要讨论了其他一些模型，包括B空间中上述行为。
With analytical representation for the pp scattering amplitudes introduced and tested at lower energies, a description of high precision is given of the $dσ/dt$ data at $\sqrt{s}$= 13 TeV for all values of the momentum transfer, with explicit identification of the real and imaginary parts. In both $t$ and $b$ coordinates the amplitudes have terms identified as of non-perturbative and perturbative nature, with distinction of their influences in forward and large $|t|$ ranges and in central and peripheral regions respectively. In the forward range, the role of the Coulomb-nuclear interference phase is investigated. The energy dependence of the parameters of the amplitudes are reviewed and updated, revealing a possible emergence of a peculiar behavior of elastic and inelastic profiles in b-space for central collisions, which seems to be enhanced quickly at higher energies. Some other models are also briefly discussed in comparison, including the above mentioned behavior in b-space.
