对撞机的早期物质统治：胶球万岁！

IF 4.5 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Physics Letters B Pub Date : 2025-02-01 Epub Date: 2025-01-28 DOI:10.1016/j.physletb.2025.139292

Fady Bishara , Filippo Sala , Kai Schmidt-Hoberg

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引用次数: 0

摘要

我们证明对撞机搜索长寿命粒子（llp）可以测试早期宇宙中物质主导的动力学。在这封信中，我们将集中讨论来自gev尺度的封闭暗扇区的胶球的具体例子，并计算由它们的衰变引起的宇宙遗迹的稀释。然后我们表明，从希格斯衰变中寻找长寿命的胶球，在ATLAS和CMS、CODEX-b、ANUBIS和MATHUSLA测试稀释值的增加。我们确定了通过对撞机上的llp发现早期物质支配模型的一般特征。我们的研究为测试更长的寿命提供了定量的物理动机。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Early matter domination at colliders: Long live the glueball!

We prove that collider searches for long-lived particles (LLPs) can test the dynamics responsible for matter domination in the early universe. In this letter we concentrate on the specific example of glueballs from a GeV-scale confining dark sector and compute the dilution of cosmological relics induced by their decay. We then show that searches for long-lived glueballs from Higgs decays test increasing values of dilution at ATLAS and CMS, CODEX-b, ANUBIS and MATHUSLA. We identify the general features that make models of early matter domination discoverable via LLPs at colliders. Our study provides a quantitative physics motivation to test longer lifetimes.

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来源期刊

Physics Letters B 物理-物理：综合

CiteScore

9.10

自引率

6.80%

发文量

647

审稿时长

3 months

期刊介绍： Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.