Large star/rose extra dimension with small leaves/petals
Jan 20, 202049 pages
Published in:
- Int.J.Mod.Phys.A 35 (2020) 30, 2050182
- Published: Oct 30, 2020
e-Print:
- 2001.07102 [hep-ph]
DOI:
- 10.1142/S0217751X20501821 (publication)
Citations per year
Abstract: (WSP)
In this paper, we propose to compactify a single Large Extra Dimension (LED) on a star/rose graph with a large number of identical leaves/petals. The 5D Planck scale can be chosen to be ΛP(5) ∼𝒪(1) TeV which can provide a path to solve the gauge hierarchy problem. The leaf/petal length scale is of 𝒪(1/ΛEW), where ΛEW ∼ 100 GeV is the weak scale, without the large geometrical hierarchy of the traditional LED models to stabilize. The 4D fields of the SM are localized on a 3-brane at the central vertex of the star/rose graph. We predict a tower of feebly coupled weak scale Kaluza–Klein (KK) gravitons below a regime of strongly coupled gravitational phenomena above the TeV scale. Moreover, we reformulate in our setup the LED mechanism to generate light Dirac neutrinos, where the right-handed neutrinos are KK-modes of gauge singlet fermions propagating in the bulk. A large number of KK-gravitons and KK-neutrinos interact only gravitationally and thus constitute a hidden sector.Note:
- 45 pages (excluding bibliography). v5: Minor corrections compared to the journal (IJMPA) version
- 11.10.Kk
- 11.25.Mj
- 11.30.Fs
- 13.15.+g
- 14.80.Rt
- Beyond Standard Model
- Gauge Hierarchy Problem
- Large Extra Dimensions
- Brane Worlds
- Field Theories in Higher Dimensions
References(152)
Figures(1)
Seminars
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