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arXiv 2209.07095hep-ph
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CGC方法中的偶极-偶极散射振幅

Dipole-dipole scattering amplitude in CGC approach

Eugene Levin

摘要:

在本文中,我们提出了QCD中偶极密度的递推关系,这使得我们能够从BFKL方程的解中找到这些密度。我们解决这些关系中的扩散近似的BFKL内核。在此基础上,我们求出了大的Pomeron环的和。该和产生散射振幅,该振幅在大的快度值$Y$处减小。事实证明,这种行为的散射振幅是一个伪影的扩散近似。这种近似导致在深非弹性散射和偶极-偶极相互作用在高能量的无饱和的unitarization。

英文摘要:

In this paper we propose recurrence relations for the dipole densities in QCD, which allows us to find these densities from the solution to the BFKL equation. We resolve these relations in the diffusion approximation for the BFKL kernel. Based on this solution, we found the sum of large Pomeron loops. This sum generates the scattering amplitude that decreases at large values of rapidity $Y$. It turns out that such behaviour of the scattering amplitudes is an artifact of diffusion approximation. This approximation leads to the unitarization without saturation both in deep inelastic scattering and in dipole-dipole interaction at high energies.

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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