论文标题
在$ n_f = 0 $ qcd中模拟胶球生产
Simulating Glueball Production in $N_f = 0$ QCD
论文作者
论文摘要
在$ su（n_c）$量规理论中，零夸克风味$ n_f = 0 $，唯一形成限制量表以下的耐药状态是称为粘合球的复合gluon状态。这些最小的限制部门出现在标准模型的许多隐藏山谷扩展中，包括可以解决暗物质问题和层次结构问题的方案。深胶球现象学的定量研究需要了解纯胶水强化，迄今为止，这严重缺乏。在这项工作中，我们表明，可以通过将无知的非扰动物理学的自洽且出于身体动机的参数化相结合，这可以取得重大进展，这要归功于粘合球质量和禁闭量表之间的适度层次结构。我们将仿真代码作为公共粘合剂软件包提供，这是第一个用于隐藏山谷理论的粘合球发生器，并对几种粘合球生产可观察物进行了初步研究，理论上的不确定性将所有可能的强调场景都考虑到了。我们希望这将使以前无法访问的黑暗扇区现象学的新研究。
In an $SU(N_c)$ gauge theory with zero light quark flavours $N_f = 0$, the only hadronic states that form below the confinement scale are composite gluon states called glueballs. These minimal confining sectors arise in many Hidden Valley extensions of the Standard Model, including scenarios that could hold the solution to the dark matter question and the hierarchy problem. Quantitative study of dark glueball phenomenology requires an understanding of pure glue hadronization, which to date is severely lacking. In this work we show that significant progress can be made by combining a perturbative pure glue parton shower with a self-consistent and physically motivated parameterization of the unknown non-perturbative physics, thanks to the modest hierarchy between the glueball mass and the confinement scale. We make our simulation code available as the public GlueShower package, the first glueball generator for Hidden Valley theories, and perform preliminary studies of several glueball production observables, with theoretical uncertainties that take the full range of possible hadronization scenarios into account. We hope this will enable new studies of dark sector phenomenology that were previously inaccessible.
