标题： 高能中微子深非弹性散射的横截面和非弹性度分布 显示英文标题

标题： Cross Sections and Inelasticity Distributions of High-Energy Neutrino Deep Inelastic Scattering

摘要： 本研究提出了一个全面的模型，用于描述从 50 GeV 到 5$\times10^{12}$ GeV 能量范围内的中微子深击inelastic scattering (DIS) 截面，重点在于中微子望远镜的应用。我们提供了总电荷电流 DIS 截面和非弹性分布的计算，对于同位标核子靶标达到 NNLO 精度，对于核靶标达到 NLO 精度。 结构函数进行了若干修改，以改善低能区截面的建模，在此区域微扰量子色动力学（QCD）不太准确，并且在高能区存在不可忽略的顶夸克产生，需要重新求和小的$x$对数。使用 FONLL 一般质量可变夸克数方案，我们考虑了重夸克质量效应，并分离了结构函数的重味成分，得到了它们对截面相对贡献的预测以及由部分子分布函数引起的不确定性。 此外，在双微分截面的计算中实现了最终态辐射的影响，并讨论了其对中微子望远镜测量的影响。 显示英文摘要

摘要： This study presents a comprehensive model for neutrino deep inelastic scattering (DIS) cross sections spanning energies from 50 GeV to 5$\times10^{12}$ GeV with an emphasis on applications to neutrino telescopes. We provide calculations of the total charged-current DIS cross sections and inelasticity distributions up to NNLO for isoscalar nucleon targets and up to NLO order for nuclear targets. Several modifications to the structure functions are applied to improve the modeling of the cross sections at low energies where perturbative QCD is less accurate and at high energies where there is non-negligible top quark production, and small-$x$ logarithms need to be resumed. Using the FONLL general-mass variable-flavor number scheme, we account for heavy quark mass effects and separate the heavy flavor components of the structure functions, obtaining predictions of their relative contributions to the cross sections and the uncertainties arising from the parton distribution functions. Additionally, the effects of final state radiation are implemented in the calculation of the double-differential cross section and discussed in terms of their impact on measurements at neutrino telescopes.