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arXiv 2012.11618hep-phhep-th
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关于高能核子的形状

On the shape of nucleons at high energies

M. L. Nekrasov

摘要:

在扩展部分子模型的框架下,描述了核子形状随能量增加而演化的一种情形,该模型始终考虑了部分子的横向运动。在能量$E$达到LHC时,核子具有球体的形式,其在横向上以$\sqrt{\ln \!E}$膨胀,在纵向上以$E$线性增长。随着能量的进一步增加,部分子的相关行为模式被建立,这停止了纵向生长。同时,在横向方向上的膨胀改变为$\ln \!E$,并且在核子内部沿着它们运动方向的中心轴形成了一个几乎没有部分子的空洞。相应的参数的数值估计。

英文摘要:

A scenario of evolution of the shape of nucleons with increasing energy is described in the framework of extended parton model, which consistently takes into account the transverse motion of the partons. At the energy $E$ up to LHC, the nucleons have the form of a spheroid which expands as $\sqrt{\ln \!E}$ in the transverse directions and grows linearly in $E$ in the longitudinal direction. With a further increase in the energy a mode of correlated behavior of the partons is established, which stops the longitudinal growth. Simultaneously, the expansion in the transverse directions changes to $\ln \!E$, and a hollow mostly free of partons is formed inside the nucleons along the central axis in the direction of their motion. Numerical estimates of the corresponding parameters are obtained.

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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