多粒子动力学激活质子外围
Proton periphery activated by multiparticle dynamics
摘要：
结果表明，随着碰撞能量的增加，质子在外围变得更加活跃。通过计算LHC能区质子-质子重叠函数的碰撞参量分布，并与ISR（$p\bar p$为S $p\bar p$ S）数据进行比较，我们得出结论：通过多粒子动力学，质子的外围区域在总截面的上升中起着越来越大的作用。质子的大小和它的黑度随能量增加而增加。质子在中心区域，特别是在边缘区域变得更黑。这种效应可能与脊现象和LHC能量下的非弹性衍射过程有关。
英文摘要：
It is shown that protons become more active at the periphery with increase of their collision energy. By computing the impact parameter distribution of the proton-proton overlap function at LHC energies and comparing it with ISR (and S$p\bar p$S for $p\bar p$) data, we conclude that the peripheral region of protons plays an increasing role in the rise of total cross sections through multiparticle dynamics. The size of the proton as well as its blackness increase with energy. The protons become more black both in the central region and, especially, at the periphery. This effect can be related to the ridge phenomenon and to the inelastic diffraction processes at LHC energies.
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