论文标题

弱尺度作为触发器

The Weak Scale as a Trigger

论文作者

Arkani-Hamed, Nima, D'Agnolo, Raffaele Tito, Kim, Hyung Do

论文摘要

希格斯质量参数的值是否会影响标准模型中本地运营商的期望值?对于所有本地运算符而言,这个问题的答案是“否”,这是层次结构问题的头像之一:当希格斯质量参数越过零时,什么都没有“触发”。在这封信中,我们探讨了Higgs质量参数的设置,$ $可以用作某些本地操作员$ {\ cal o} _t $的“触发”。在标准模型中,这种情况发生在$ {\ cal o} _t = {\ rm tr}(g \ tilde g)$。我们还引入了一个“ type-0”两个Higgs Doublet型号,其中$ Z_4 $对称性是$ {\ cal o} _t = h_1 H_2 $触发的是由希格斯群众触发的,要求将新的希格斯的存在与弱尺度相比,与弱尺度相比,没有wiggle bool decOff decOff decOff decOudef。令人惊讶的是,该模型尚未完全被对撞机搜索所排除在外,并且将通过LHC的高亮度运行以及未来的Higgs工厂敏锐地探索。我们还讨论了使用此触发器解释弱尺度的起源的可能性,援引极度轻,相互作用的标量$ ϕ_i $的景观,并需要与$ {\ cal o} _t $耦合,以便找到与足够小的宇宙学常数找到真空的可能性。弱尺度触发将希格斯质量的调整与宇宙常数的调整联系在一起,而$ ϕ_i $的连贯振荡可能构成暗物质。

Does the value of the Higgs mass parameter affect the expectation value of local operators in the Standard Model? For essentially all local operators the answer to this question is "no", and this is one of the avatars of the hierarchy problem: nothing is "triggered" when the Higgs mass parameter crosses zero. In this letter, we explore settings in which Higgs mass parameters $can$ act as a "trigger" for some local operators ${\cal O}_T$. In the Standard Model, this happens for ${\cal O}_T = {\rm Tr} (G \tilde G)$. We also introduce a "type-0" two Higgs doublet model, with a $Z_4$ symmetry, for which ${\cal O}_T = H_1 H_2$ is triggered by the Higgs masses, demanding the existence of new Higgs states necessarily comparable to or lighter than the weak scale, with no wiggle room to decouple them whatsoever. Surprisingly, this model is not yet entirely excluded by collider searches, and will be incisively probed by the high-luminosity run of the LHC, as well as future Higgs factories. We also discuss a possibility for using this trigger to explain the origin of the weak scale, invoking a landscape of extremely light, weakly interacting scalars $ϕ_i$, with a coupling to ${\cal O}_T$ needed to make it possible to find vacua with small enough cosmological constant. The weak scale trigger links the tuning of the Higgs mass to that of the cosmological constant, while coherent oscillations of the $ϕ_i$ can constitute dark matter.

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