skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Thick branes in extra dimensions and suppressed dark couplings

Journal Article · · Journal of High Energy Physics (Online)

The nature of dark matter (DM) and how it may interact with the various fields of the Standard Model (SM) remains a mystery. In this paper we show that the interaction between new light dark matter mediators and the SM particles can be naturally suppressed if one employs a single, flat extra dimension (ED). In this setup, the SM fields are localized in a finite width ‘fat’ brane, similar to models of Universal Extra Dimensions (UED), while DM, in turn, is confined to a thin brane at the opposite end of the ED interval. Including brane localized kinetic terms on the fat brane for the mediator fields, the resulting coupling between the SM and these light mediators can be several orders of magnitude smaller than the corresponding ones between the mediators and DM which we assume to be a typical gauge coupling. We investigate the implications of this scenario for both vector (i.e, dark photon, DP) and scalar mediator fields in the 5-D bulk. In this setup kinetic mixing, which is usually employed to suppress light mediator couplings, is not required. Here we assume that the SM particles couple to the DP via their B - L charges while the DP couples to the DM via a dark charge. Both the vector DP couplings and the corresponding Higgs portal couplings with the SM are shown to be natural small in magnitude with a size dependent on ratio of the 5-D compactification radius, R-1 ~ 0.1-1 GeV, and the SM brane thickness, L-1 ~ 2-10 TeV, a range chosen to avoid LHC and other experimental constraints. In this framework one can obtain the observed value of the DM relic abundance for a wide range of parameter choices, while the constrains due to direct DM detection and the invisible width of the Higgs do not impose significant challenges to the model. Finally, this mechanism can lead to distinct signatures in both present and upcoming experiments as it combines some common features of UED and DP models in a single ED setup.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1546918
Journal Information:
Journal of High Energy Physics (Online), Vol. 2019, Issue 6; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

References (82)

Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom journal December 2016
Secluded U(1) below the weak scale journal November 2009
Feebly interacting dark matter particle as the inflaton journal September 2016
New Physics from Electric Charge Quantization? journal March 1991
Searching for ϵ charges and a new U(1) journal September 1986
LHC collider phenomenology of minimal universal extra dimensions journal May 2018
The poker face of the Majoron dark matter model: LUX to keV line journal July 2014
Review of Particle Physics text January 2018
Inflationary imprints on dark matter journal November 2015
The Minimal Model of nonbaryonic dark matter: a singlet scalar journal December 2001
Review of Particle Physics text January 2008
Dark matter CMB constraints and likelihoods for poor particle physicists journal March 2013
Brane inflation journal March 1999
Hunting all the hidden photons journal July 2018
Heavy dark matter through the Higgs portal journal July 2008
Toward (finally!) ruling out Z and Higgs mediated dark matter models journal December 2016
Muon Anomaly and Dark Parity Violation journal July 2012
Antimatter signals of singlet scalar dark matter journal December 2009
Review of Asymmetric dark Matter journal July 2013
Illuminating dark photons with high-energy colliders journal February 2015
Review of Particle Physics journal August 2018
New LUX and PandaX-II results illuminating the simplest Higgs-portal dark matter models journal December 2016
Scalar Phantoms journal October 1985
Two U(1)'s and ϵ charge shifts journal January 1986
Real gauge singlet scalar extension of the Standard Model: A possible candidate for cold dark matter journal March 2013
Global study of the simplest scalar phantom dark matter model journal October 2012
Isocurvature constraints on portal couplings journal June 2016
Reopening the Higgs portal for single scalar dark matter journal May 2017
The waning of the WIMP? A review of models, searches, and constraints journal March 2018
Extra-weakly interacting dark matter journal January 2007
Secluded WIMP dark matter journal April 2008
“Dark” Z implications for parity violation, rare meson decays, and Higgs physics journal June 2012
Analyzing the Discovery Potential for Light Dark Matter journal December 2015
Kinetic mixing and the supersymmetric gauge hierarchy journal May 1997
Leptophobic U(1)'s and the R b R c anomalies journal October 1996
Gauge kinetic mixing and leptophobic Z in E 6 and SO ( 10 ) journal December 1998
Bounds on universal extra dimensions journal June 2001
Six-dimensional gauge theory on the chiral square journal February 2006
Radiative effects on the chiral square journal November 2006
Current LHC constraints on minimal universal extra dimensions journal August 2017
A possible new dimension at a few TeV journal August 1990
Extra spacetime dimensions and unification journal September 1998
New dimensions at a millimeter to a fermi and superstrings at a TeV journal September 1998
The hierarchy problem and new dimensions at a millimeter journal June 1998
Flavor structure of warped extra dimension models journal January 2005
Flavor Anarchy in a Randall-Sundrum Model with 5D Minimal Flavor Violation and a Low Kaluza-Klein Scale journal April 2008
Gauge singlet scalars as cold dark matter journal September 1994
Self-interacting dark matter and the Higgs boson journal July 2000
The Higgs Portal and an Unified Model for dark Energy and dark Matter journal December 2008
Cosmological constraints on an invisibly decaying Higgs journal October 2001
Two-loop stability of a complex singlet extended standard model journal July 2015
Planck scale, Higgs mass, and scalar dark matter journal July 2014
Study of electroweak vacuum metastability with a singlet scalar dark matter journal December 2014
Scalar field dark matter and the Higgs field journal August 2016
Real singlet scalar dark matter extension of the Georgi-Machacek model journal January 2017
Observational constraints on decoupled hidden sectors journal September 2016
Scalar field dark matter with spontaneous symmetry breaking and the 3.5 keV line journal June 2018
WIMP miracle of the second kind journal July 2017
Dark energy, scalar singlet dark matter and the Higgs portal journal May 2018
Implications of LHC searches for Higgs-portal dark matter journal March 2012
Direct detection of Higgs–portal dark matter at the LHC journal June 2013
Heavy WIMP through Higgs portal at the LHC journal April 2015
Indirect dark matter signatures in the cosmic dark ages. I. Generalizing the bound on s -wave dark matter annihilation from Planck results journal January 2016
Fat brane phenomena journal June 2000
Chiral fermions, orbifolds, scalars, and fat branes journal February 2001
New- Z phenomenology journal January 1991
(Quasi)localized gauge field on a brane: dissipating cosmic radiation to extra dimensions? journal January 2001
Direct detection of sub-GeV dark matter journal April 2012
Terrestrial effects on dark matter-electron scattering experiments journal July 2017
SENSEI: First Direct-Detection Constraints on Sub-GeV Dark Matter from a Surface Run journal August 2018
LHC collider phenomenology of minimal universal extra dimensions dataset January 2018
Review of Particle Physics text January 2012
Heavy Dark Matter Through the Higgs Portal text January 2008
Secluded U(1) below the weak scale text January 2008
Antimatter signals of singlet scalar dark matter text January 2009
Dark Matter CMB Constraints and Likelihoods for Poor Particle Physicists text January 2013
Review of asymmetric dark matter text January 2013
Illuminating Dark Photons with High-Energy Colliders text January 2014
Constraining the Higgs portal with antiprotons preprint January 2014
LHC Collider Phenomenology of Minimal Universal Extra Dimensions text January 2017
The Minimal Model of Nonbaryonic Dark Matter: A Singlet Scalar text January 2000
Brane Inflation text January 1998

Cited By (2)

Gauge field and brane-localized kinetic terms on the chiral square journal October 2019
Consistency conditions for p-form field localization on codimension two braneworlds journal December 2020

Similar Records

Kinetic mixing, dark photons and an extra dimension. Part I
Journal Article · Wed Jul 18 00:00:00 EDT 2018 · Journal of High Energy Physics (Online) · OSTI ID:1546918

Kinetic mixing, dark photons and extra dimensions. Part II: fermionic dark matter
Journal Article · Tue Oct 09 00:00:00 EDT 2018 · Journal of High Energy Physics (Online) · OSTI ID:1546918

Inflation, proton decay, and Higgs-portal dark matter in $$SO(10) \times U(1)_\psi $$
Journal Article · Sat Dec 28 00:00:00 EST 2019 · European Physical Journal. C, Particles and Fields · OSTI ID:1546918