论文标题
LHC和向前物理设施的轻型介体的高能排放以及浓厚的味道
High-energy emissions of light mesons plus heavy flavor at the LHC and the Forward Physics Facility
论文作者
论文摘要
对高能状况中强相互作用的动力学的研究是LHC以及新一代碰撞设施的边界研究的核心线。在这里,由于衍射半硬度最终状态而引起的能量对数的增强破坏了QCD运行耦合中扰动序列的收敛性,因此呼吁改善这些大对数贡献的纯胶线因子化,以改善纯线性因素化。最近发现,重量品味颗粒的包容性排放允许在高阶校正和规模变化下重新降低差异分布的清晰信号,我们为快速和无偶然的可观察物提供了新颖的预测,以备受覆盖的繁荣($或$ $或$ $或$η$η$ qul)。 ($λ_c$或$ b $ - 最喜欢的强子)。我们在混合高能和共线性分解框架中计算可观察力,其中临近bfkl呼吸的党横截面与沿线分布和碎片函数相连。我们认为运动范围通常由LHC探测器的接受度覆盖,而新的范围来自未来正向物理设施(FPF)的超前粒子的组合标签,以及通过紧密的定时安装设置在Atlas的中心粒子。通过对与共线输入相关的不确定性进行详细研究,通过复制驱动的分析以及本质上来自高能量重新召集的研究,我们强调了我们流程精确研究的可行性所需的挑战和步骤。
The study of the dynamics of strong interactions in the high-energy regime is a core line of frontier researches at the LHC as well as at new-generation colliding facilities. Here, the enhancement of energy logarithms due to diffractive semi-hard final states spoils the convergence of the perturbative series in the QCD running coupling, thus calling for an improvement of the pure collinear factorization that accounts for an all-order resummation of these large logarithmic contributions. Motivated by the recent discovery that inclusive emissions of heavy-flavored particles allow for clear signals of a stabilization of high-energy resummed differential distributions under higher-order corrections and scale variations, we provide novel predictions of rapidity and azimuthal-angle observables for the inclusive hadroproduction of a light meson ($η$ or $π^\pm$) in association with a heavy-flavored hadron ($Λ_c$ or $b$-flavored hadron). We calculate our observables in a hybrid high-energy and collinear factorization framework, where next-to-leading BFKL-resummed partonic cross sections are convoluted with collinear parton distributions and fragmentation functions. We consider kinematic ranges typically covered by acceptances of LHC detectors, and new ones coming from the combined tag of an ultra-forward particle at the future Forward Physics Facility (FPF) and of a central one at ATLAS via a tight timing-coincidence setup. By performing a detailed study on uncertainties associated to collinear inputs via a replica-driven analysis, as well as on ones intrinsically coming from the high-energy resummation, we highlight the challenges and the steps required to gauge the feasibility of precision studies of our processes.