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arXiv 2210.13484hep-ph
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将电弱尺度吸引至快子陷阱

Attracting the Electroweak Scale to a Tachyonic Trap

Sokratis Trifinopoulos, Miguel Vanvlasselaer

AI总结:

提出一种在暴胀期间通过类轴子场与Higgs耦合及快子质量区域产生的反作用势动态选择电弱尺度的新机制,该模型避免了跨普朗克场偏移并可通过未来对撞机探测。

摘要:

我们提出了一种在暴胀期间动态选择电弱尺度的新机制。一个类轴子场 $ϕ$ 与 Higgs 二次耦合,其具有指向临界点 $ϕ_c$ 的巨大初始速度,在该临界点处 Higgs 变得无质量。当 $ϕ$ 穿越该点时,它进入一个 Higgs 质量为快子的区域,这导致 Higgs 粒子的剧烈产生。因此,产生了反作用势,场 $ϕ$ 被吸引回 $ϕ_c$。经过围绕该点的一系列振荡后,由于势的周期项,它最终被困在其附近。该模型避免了跨普朗克场偏移,仅需极少的暴胀 e-folds 数,且兼容高达 $10^5~\ m GeV$ 的暴胀尺度。$ϕ$ 的质量位于数百 GeV 到几 TeV 的范围内,未来可能在对撞机中被探测到。

英文摘要:

We propose a new mechanism to dynamically select the electroweak scale during inflation. An axion-like field $ϕ$ that couples quadratically to the Higgs with a large initial velocity towards a critical point $ϕ_c$ where the Higgs becomes massless. When $ϕ$ crosses this point, it enters a region where the Higgs mass is tachyonic and this results into an explosive production of Higgs particles. Consequently, a back-reaction potential is generated and the field $ϕ$ is attracted back to $ϕ_c$. After a series of oscillations around this point it is eventually trapped in its vicinity due to the periodic term of the potential. The model avoids transplanckian field excursions, requires very few e-folds of inflation and it is compatible with inflation scales up to $10^5~\rm GeV$. The mass of $ϕ$ lies in the range of hundreds of GeV to a few TeV and it can be potentially probed in future colliders.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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