The No-Scale Multiverse at the LHC
Abstract
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. We argue for the importance of No-Scale Supergravity as an essential common underpinning for the spontaneous emergence of a cosmologically flat universe from the quantum "nothingness". Our context is a highly detailed phenomenological probe of No-Scale Script F-SU(5), a model representing the intersection of the Script F-lipped SU(5) × U(1)x Grand Unified Theory (GUT) with extra TeV-Scale vector-like multiplets derived out of Script F-theory, and the dynamics of No-Scale Supergravity. The latter in turn imply a very restricted set of high energy boundary conditions.
We present a highly constrained "golden point" located near M1/2 = 455 GeV and tan β = 15 in the tan β - M1/2 plane, and a highly non-trivial "golden strip" with tan β ≃ 15, mt = 173.0-174.4 GeV, M1/2 = 455-481 GeV, and Mv = 691-1020 GeV, which simultaneously satisfies all the known experimental constraints, featuring also an imminently observable proton decay rate. We supplement this bottom-up phenomenological perspective with a top-down theoretical analysis of the one-loop effective Higgs potential. A striking consonance is achieved via the dynamic determination of tan β and M1/2 for fixed Z-boson mass at the local minimum minimorum of the potential, that being the secondary minimization of the spontaneously broken electroweak Higgs vacuum Vmin. By also indirectly determining the electroweak scale, we suggest that this constitutes a complete resolution of the Standard Model gauge hierarchy problem. Finally, we present the distinctive collider level signatures of No-Scale Script F-SU(5) for the √s = 7 TeV LHC, with 1 fb-1 of integrated luminosity. The characteristic feature is a light stop and gluino, both sparticles lighter than all other squarks, generating a surplus of ultra-high multiplicity (>= 9) hadronic jet events. We propose modest alterations to the canonical background selection cut strategy which are expected to yield significantly enhanced resolution of the characteristic ultra-high jet multiplicity Script F-SU(5) events, while readily suppressing the contribution of all Standard Model processes, and allowing moreover a clear differentiation from competing models of new physics, most notably minimal supergravity. Detection by the LHC of the ultra-high jet signal would constitute a suggestive evocation of the intimately linked stringy origins of Script F-SU(5), and could possibly provide a glimpse into the underlying structure of the fundamental string moduli, possibly even opening a darkened glass upon the hidden workings of the No-Scale Multiverse.- Publication:
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Journal of Physics Conference Series
- Pub Date:
- July 2011
- DOI:
- 10.1088/1742-6596/306/1/012015
- arXiv:
- arXiv:1104.0231
- Bibcode:
- 2011JPhCS.306a2015L
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- A review of recent work, submitted to the DICE 2010 Workshop proceedings, based on the invited talk by D.V.N. (20 Pages, 5 Tables, 18 Figures)