论文标题

Nlo Jimwlk的演变与大量的夸克

NLO JIMWLK evolution with massive quarks

论文作者

Dai, Lin, Lublinsky, Michael

论文摘要

几年前得出了带有质量夸克的Jalilian-Miancu-mclerran-weigert-leonidov-kovner(Jimwlk)方程的NLO进化。我们迈出了进一步的一步,以计算有限夸克质量引起的效果的进化内核。为此,在QCD耦合常数中,计算出快速移动稀释的HADRONIC弹丸的轻锥波函数最多可达$ {\ cal O}(g^3)$。与无质量的情况相比,出现了新的红外差异,最终被大规模依赖的计数器术语取消。我们的结果扩展了用于Gluon饱和物理学的理论工具,并旨在提高未来现象学应用中的精度。

NLO evolution of the Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) equation with massless quarks was derived a few years ago. We make a step further to compute the evolution kernels focusing on the effects due to finite quark masses. To this goal, the light-cone wave function of a fast moving dilute hadronic projectile is computed up to ${\cal O}(g^3)$ in QCD coupling constant. Compared with the massless case, a new IR divergence emerges, which is eventually canceled by a mass dependent counter term. Our results extend the theoretical tools used in physics of gluon saturation and aim at improving precision in future phenomenological applications.

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