论文标题
最大纠缠的质子并在深度非弹性散射中带电的强子多重性
Maximally entangled proton and charged hadron multiplicity in Deep Inelastic Scattering
论文作者
论文摘要
我们研究了Kharzeev-Levin的提议，以确定来自Parton分布函数（PDF）的深度非弹性散射（DIS）中的纠缠熵，并将前者与最终状态HADRON的熵相关联。我们在当前与数据的比较中发现了几个不确定性，尤其是总体归一化，与实验结果相比，带电与总强子多重性之间的关系以及确定深度无弹性散射中的partons数量的不同方法。我们进一步提供了基于领先顺序HERA PDF的数据的比较，以及从未集成的Gluon分布中获得的PDF，但要遭受临近领先的订单Balitsky-Fadin-Kuraev-Lipatov和Balitsky-Kovchegov Evolution。在不确定性中，我们发现与H1数据一致。我们还为较低光子虚拟的熵提供了预测，其中预计非线性QCD动力学将变得相关。
We study the proposal by Kharzeev-Levin to determine entanglement entropy in Deep Inelastic Scattering (DIS) from parton distribution functions (PDFs) and to relate the former to the entropy of final state hadrons. We find several uncertainties in the current comparison to data, in particular the overall normalization, the relation between charged versus total hadron multiplicity in the comparison to experimental results as well as different methods to determine the number of partons in Deep Inelastic Scattering. We further provide a comparison to data based on leading order HERA PDF as well as PDFs obtained from an unintegrated gluon distribution subject to next-to-leading order Balitsky-Fadin-Kuraev-Lipatov and Balitsky-Kovchegov evolution. Within uncertainties we find good agreement with H1 data. We provide also predictions for entropy at lower photon virtualities, where non-linear QCD dynamics is expected to become relevant.
