极化偶极散射振幅与价夸克模型的结合
Polarized Dipole Scattering Amplitudes meet the Valence Quark Model
AI总结：
本研究利用质子光前价夸克模型，结合价夸克的胶子微扰发射与吸收过程，计算小x螺旋度演化的中等x初始条件，得到自由参数更少的新初始条件，有望提升小x螺旋度演化的预测能力。
摘要：
近期经修正的小x螺旋度演化重整了双对数因子α_s ln²(1/x)，可用于研究小Bjorken x（对应高质心系能量）下的夸克与胶子螺旋度分布。本研究利用质子的光前价夸克模型，计算了α_s ln²(1/x)~1区域内小x螺旋度演化的中等x初始条件，该模型能提供靶标的额外物理信息，研究还纳入了价夸克对胶子的微扰发射与吸收过程。结果见公式(35)，给出了一组新的初始条件，其自由参数数量较传统模型大幅减少。因此，引入本研究的初始条件后，小x螺旋度演化的预测能力有望得到提升。
英文摘要：
The recently revised small-$x$ helicity evolution, resumming the double-logarithmic factor, $α_s\ln^2(1/x)$, allows for the study of helicity distributions of quarks and gluons at small Bjorken $x$, corresponding to high center-of-mass energy. In this work, we calculate the moderate-$x$ initial conditions in the regime, $α_s \ln^2(1/x)\sim 1$, for the small-$x$ helicity evolution using a light-front valence quark model of the proton, which provides additional physical information about the target. The perturbative emission and absorption of a gluon by the valence quarks are also included. The results, given in Eqs. (35), provide a new set of initial conditions with a significantly reduced number of free parameters than conventional models. Consequently, the predictive power of small-$x$ helicity evolution is expected to improve once the initial conditions from this work are incorporated.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
