Theoretical Particle Physics Consortium Sussex - Royal Holloway

理论粒子物理联盟苏塞克斯 - 皇家霍洛威学院

• 批准号: ST/L000512/1
• 负责人: Stephen West
• 金额: $ 14.43万
• 依托单位: Royal Holloway University of London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FL000512%2F1
• 关键词: Theoretical; Particle; Physics; Consortium; Sussex

The proposed research unites the particle theory groups at Sussex and Royal Holloway in the hunt for new physics under three broad headings:Collider and low-energy phenomenologyThe Large Hadron Collider boosts elementary particles to velocities so close to that of light that their effective mass grows by a factor of a billion. By smashing these particles together there are new discoveries to be made, and new theories of physics to test. We will work on the complex task of relating the debris of these collisions to the new models put forward by theorists to explain some of the most puzzling questions of the universe - what is the origin of mass? and is there a quantum theory of gravity?Particle astrophysics and cosmologyOne of the most active areas of research in the past decade has been at the interface between particle physics and cosmology. In order to understand the history of the universe we must understand physical laws in the first moments of the Big Bang, when temperatures and particle energies were huge. Conversely, by detailed observations of the universe today we can trace back the conditions and make deductions about physical laws at high energies.Our research will tackle big questions about the universe: why is there more matter than antimatter? what is dark matter? is there any evidence out there for strings and black holes? and can we understand the history of the universe from the epoch of inflation until the present day in one overarching theory?New pathways to metric quantum gravityOne of the key challenges in theoretical physics relates to the quantum nature of gravity, and how gravity fits in with the successful Standard Model of particle physics. Our research deals primarily with the quantum fluctuations of space-time itself, where we want to understand how this affects particle physics at highest energies, the cosmological evolution at very early and very late times, or the properties of smallest black holes. We also put systematic searches forward to decide whether a quantum theory of the space-time metric exists as a fundamental theory.

拟议中的研究联合了苏塞克斯大学和皇家大学霍洛威的粒子理论小组，在三个大标题下寻找新的物理学：对撞机和低能现象大型强子对撞机将基本粒子的速度提高到如此接近光速，以至于它们的有效质量增加了十亿倍。通过将这些粒子碰撞在一起，将会有新的发现，新的物理理论将会得到检验。我们将致力于将这些碰撞的碎片与理论家提出的新模型联系起来的复杂任务，以解释宇宙中一些最令人困惑的问题-质量的起源是什么？有引力的量子理论吗粒子天体物理学和宇宙学在过去的十年中，最活跃的研究领域之一是粒子物理学和宇宙学之间的界面。为了了解宇宙的历史，我们必须了解大爆炸最初时刻的物理定律，当时温度和粒子能量都很大。相反，通过今天对宇宙的详细观察，我们可以追溯到高能状态下的条件并推导出物理定律。我们的研究将解决宇宙的大问题：为什么物质比反物质多？什么是暗物质？有弦和黑洞存在的证据吗？我们能用一个包罗万象的理论来理解宇宙从暴胀时代到今天的历史吗？度量量子引力的新途径理论物理学中的一个关键挑战涉及引力的量子性质，以及引力如何与粒子物理学的成功标准模型相适应。我们的研究主要涉及时空本身的量子涨落，我们希望了解这如何影响最高能量的粒子物理、极早期和极晚期的宇宙学演化或最小黑洞的性质。我们还提出了系统的搜索，以确定是否存在一个量子理论的时空度规作为一个基本理论。

项目成果

Signatures of large composite Dark Matter states

大型复合暗物质态的特征

• DOI: 10.1007/jhep07(2015)133
• 发表时间: 2015
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: Hardy E

Can tonne-scale direct detection experiments discover nuclear dark matter?

吨级直接探测实验能否发现核暗物质？

• DOI: 10.1088/1475-7516/2017/10/035
• 发表时间: 2017
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Butcher A

Dark matter from decaying topological defects

衰变拓扑缺陷产生的暗物质

• DOI: 10.1088/1475-7516/2014/03/037
• 发表时间: 2014
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Hindmarsh M

Simplified models for dark matter searches at the LHC

• DOI: 10.1016/j.dark.2015.08.001
• 发表时间: 2015-09-01
• 期刊: PHYSICS OF THE DARK UNIVERSE
• 影响因子: 5.5
• 作者: Abdallah, Jalal;Araujo, Henrique;Zurek, Kathryn
• 通讯作者: Zurek, Kathryn

Dark matter with topological defects in the Inert Doublet Model

惰性双峰模型中具有拓扑缺陷的暗物质

• DOI: 10.1088/1475-7516/2015/05/048
• 发表时间: 2015
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Hindmarsh M