标题： 旁观者模型中的T-奇偶胶子分布函数 显示英文标题

标题： T-odd gluon distribution functions in a spectator model

摘要： 我们提出了一个关于核子中胶子的T-奇异性横向动量依赖分布的模型计算。 该模型基于核子可以发射胶子的假设，并且在发射后剩余的部分被视为单一的旁观者粒子。 这个旁观者粒子被认为是处于质量壳上的，但它的质量被允许取连续的一系列值，这些值由一个谱函数来描述。 为了生成T-奇异性函数所需的最终态相互作用被建模为旁观者粒子与出射部分子之间单个胶子的交换。 显示英文摘要

摘要： We present a model calculation of T-odd transverse-momentum-dependent distributions of gluons in the nucleon. The model is based on the assumption that a nucleon can emit a gluon, and what remains after the emission is treated as a single spectator particle. This spectator particle is considered to be on-shell, but its mass is allowed to take a continuous range of values, described by a spectral function. The final-state interaction that is necessary to generate T-odd functions is modeled as the exchange of a single gluon between the spectator and the outgoing parton.