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arXiv 1104.0231hep-ph
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LHC上的无标度多重宇宙

The No-Scale Multiverse at the LHC

Tianjun Li, James A. Maxin, Dimitri V. Nanopoulos, Joel W. Walker

摘要:

我们提出了一个当代的弦景观和多元宇宙的似是而非的弦,M-和F-理论真空,试图证明一个非零概率的宇宙存在匹配我们自己观察到的物理在解决方案合奏,争论的重要性无标度超引力作为一个基本的共同基础。我们的内容是对无标度F-SU(5)的一个非常详细的唯象学探索,它是一个代表F-lipped SU(5)X U(1)X大统一理论(GUT)与从F理论导出的额外TeV标度矢量多重态的交叉的模型,以及无标度超引力的动力学。我们提出了一个高约束的“黄金”区,tan(beta)\sim 15,m_t = 173.0 - 174.4 GeV,M_1/2 = 455 - 481 GeV,M_V = 691 - 1020 GeV,它同时满足所有已知的实验约束.我们用自上而下的单圈有效Higgs势的理论分析来补充这种自下而上的唯象观点,通过在自发破缺的电弱Higgs真空V_min的局部二次最小化处动态确定tan(beta)和M_1/2,实现了惊人的和谐。我们提出了LHC上无标度F-SU(5)的独特特征,在那里,光阻和胶子预计将产生过剩的超高多重数(>= 9)强子喷流事件。我们提出了适度的改变,规范的背景选择切割策略,这将提高这些事件的分辨率,同时很容易抑制所有标准模型过程的贡献,并允许从竞争的新物理模型的明确区分。大型强子对撞机对超高喷流信号的探测将构成对F-SU(5)密切相关的弦起源的暗示性唤起,并可以提供对基本弦模的一瞥,甚至可能是无标度多元宇宙的运作。

英文摘要:

We present a contemporary perspective on the String Landscape and the Multiverse of plausible string, M- and F-theory vacua, seeking to demonstrate a non-zero probability for the existence of a universe matching our own observed physics within the solution ensemble, arguing for the importance of No-Scale Supergravity as an essential common underpinning. Our context is a highly detailed phenomenological probe of No-Scale F-SU(5), a model representing the intersection of the F-lipped SU(5) X U(1)_X Grand Unified Theory (GUT) with extra TeV-Scale vector-like multiplets derived out of F-theory, and the dynamics of No-Scale Supergravity. We present a highly constrained "Golden" region with tan(beta) \sim 15, m_t = 173.0 - 174.4 GeV, M_1/2 = 455 - 481 GeV, and M_V = 691 - 1020 GeV, which simultaneously satisfies all known experimental constraints. We supplement this bottom-up phenomenological perspective with a top-down theoretical analysis of the one-loop effective Higgs potential, achieving a striking consonance via the dynamic determination of tan(beta) and M_1/2 at the local secondary minimization of the spontaneously broken electroweak Higgs vacuum V_min. We present the distinctive signatures of No-Scale F-SU(5) at the LHC, where a light stop and gluino are expected to generate a surplus of ultra-high multiplicity (>= 9) hadronic jet events. We propose modest alterations to the canonical background selection cut strategy which would enhance resolution of these events, while readily suppressing the contribution of all Standard Model processes, and allowing a clear differentiation from competing models of new physics. Detection by the LHC of the ultra-high jet signal would constitute a suggestive evocation of the intimately linked stringy origins of F-SU(5), and could provide a glimpse into the fundamental string moduli, and possibly even the workings of the No-Scale Multiverse.

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