论文标题
质子质子中的喷气机中的kno状缩放 - lhc能量处的普罗顿碰撞
KNO-like scaling within a jet in proton--proton collisions at LHC energies
论文作者
论文摘要
我们使用Pythia 8 Monte-Carlo模拟研究了LHC能量质子质子碰撞中用硬射流的事件的多样性分布。我们证明了带有射流动量的带电荷的乘坐多重性分布尺度。这表明Koba-Nielsen-伯森（KNO）缩放量表在喷气机中。在没有多方相互作用（MPI）的情况下实现了射流缩放率，但是如果MPI存在而没有颜色重新连接，则会分解。我们的发现表明，在高能量碰撞中，Parton淋浴或多方相互作用违反了KNO缩放。
We study the multiplicity distributions of events with hard jets in proton-proton collisions at LHC energies using PYTHIA 8 Monte-Carlo simulations. We demonstrate that the charged-hadron multiplicity distributions scale with jet momentum. This suggests that the Koba--Nielsen--Olesen (KNO) scaling holds within a jet. The in-jet scaling is fulfilled without multiple-parton interactions (MPI), but breaks down in case MPI is present without color reconnection. Our findings imply that KNO scaling is violated by parton shower or multiple-parton interactions in higher-energy collisions.
