arXiv 2202.128992022-02hep-phhep-ex

模拟$N_f = 0$ QCD中的甘精胰岛素球生产

Simulating Glueball Production in $N_f = 0$ QCD

David Curtin, Caleb Gemmell, Christopher B. Verhaaren

备注：: 16 pages, 9 figures. Minor edits in v2, corrected typos and missing references. Added explanation for non-perturbative calculation in Section IV.B.1

摘要：

在具有零轻夸克味$N_f = 0$的$SU(N_c)$规范理论中，在禁闭标度以下形成的唯一强子态是称为胶球的复合胶子态。这些最小限制扇区出现在标准模型的许多隐谷扩展中，包括可能解决暗物质问题和层次问题的场景。对暗胶球现象学的定量研究需要对纯胶强子化的理解，这是迄今为止严重缺乏的。在这项工作中，我们表明，通过结合微扰纯胶部分子簇射与未知的非微扰物理学的自洽和物理动机参数化，可以取得重大进展，这要归功于胶球质量和限制尺度之间的适度层次结构。我们使我们的模拟代码作为公共Gestival淋浴包，第一个胶球发生器隐谷理论，并进行初步研究的几个胶球生产可观的，与理论的不确定性，考虑到所有可能的强子化方案。我们希望这将使新的研究暗区现象学，以前无法访问。

英文摘要：

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.

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英文摘要：

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