A light dilaton at the LHC
arXiv:1912.06645 · doi:10.1007/JHEP05(2020)093
Abstract
In this paper, we explore the possibility that a light dilaton can be the first sign of new physics at the LHC. The dilaton could emerge in approximate scale invariant UV completions of the SM as the Goldstone boson associated with the spontaneous breaking of the scale invariance. We study in detail the phenomenology of the dilaton at the LHC in the mass range of [] GeV including the case where the dilaton can mix with the SM Higgs boson, leading to an interesting interplay between direct and indirect constraints. A possibility that the dilaton acts as a portal to a dark sector is also considered. As a minimal realization, the dark sector includes a dark photon lighter than the dilaton implying sizeable missing energy signatures. Several simplified benchmark models that can encode different UV completions are discussed, for which we scrutinize the current and future LHC reach.
arXiv comment32 pages, 7 figures and 3 tables; v2 matches JHEP published version
References in corpus (54)
- A Large Mass Hierarchy from a Small Extra Dimension
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- FeynRules 2.0 - A complete toolbox for tree-level phenomenology
- MadGraph 5 : Going Beyond
- Search for the Standard Model Higgs Boson at LEP
- Modulus Stabilization with Bulk Fields
- Modeling the fifth dimension with scalars and gravity
- RS1, Custodial Isospin and Precision Tests
- Comments on the Holographic Picture of the Randall-Sundrum Model
- Radion Dynamics and Electroweak Physics
- SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM
- Light scalar at LHC: the Higgs or the dilaton?
- Graviscalars from higher-dimensional metrics and curvature-Higgs mixing
- Warped Gravitons at the LHC and Beyond
- SusHi Bento: Beyond NNLO and the heavy-top limit
- Conformal Technicolor
- Scale invariant extension of the standard model with strongly interacting hidden sector
- Electroweak Higgs as a pseudo-Goldstone boson of broken scale invariance
- A Higgslike Dilaton
- Radion Phenomenology in Realistic Warped Space Models
- New LHC bound on low-mass diphoton resonances
- A Light Dilaton in Walking Gauge Theories
- The scalar sector of the Randall-Sundrum model
- A Naturally Light Dilaton and a Small Cosmological Constant
- A naturally light dilaton
- Gravity-mediated (or Composite) Dark Matter
- Implications of the absence of high-mass radion signals
- Constraining new physics from Higgs measurements with Lilith: update to LHC Run 2 results
- Phenomenology of a light scalar: the dilaton
- Multi-Component Dark Matter: the vector and fermion case
- Standard Model couplings and collider signatures of a light scalar
- Naturally light dilatons from nearly marginal deformations
- Lilith: a tool for constraining new physics from Higgs measurements
- Resonance at 125 GeV: Higgs or Dilaton/Radion?
- Differentiating the Higgs boson from the dilaton and the radion at hadron colliders
- Higgs-Radion interpretation of the LHC data?
- Holographic conformal transition and light scalars
- Dilaton-assisted Dark Matter
- Higgs-Radion Mixing with Enhanced Di-Photon Signal
- Dilaton at the LHC
- Radion/Dilaton-Higgs Mixing Phenomenology in Light of the LHC
- Higgs Phenomenology in the Minimal Dilaton Model after Run I of the LHC
- Higgs-dilaton(radion) system confronting the LHC Higgs data
- Dilaton Interactions and the Anomalous Breaking of Scale Invariance of the Standard Model
- Discussing 125 GeV and 95 GeV excess in Light Radion Model
- Dynamical origin of flavor hierarchies in a warped extra dimension
- A Soft-Wall Dilaton
- Interactions of a Stabilized Radion and Duality
- The Light Radion Window
- Mixed Higgs-Radion States at the LHC -- a Detailed Study
- Constraining the Higgs-Dilaton with LHC and Dark Matter Searches
- Flavour Independent Searches for Hadronically Decaying Neutral Higgs Bosons
- Dilaton portal in strongly interacting twin Higgs models
- Bounds on the Conformal Scale of a Minimally Coupled Dilaton and Multi-Leptonic Signatures at the LHC
Cited by in corpus (11)
- Supercool Composite Dark Matter Beyond 100 TeV
- Holographic models of composite Higgs in the Veneziano limit. Part I. Bosonic sector
- Scattering and absorption of a scalar field impinging on a charged black hole in the Einstein-Maxwell-dilaton theory
- Interaction of the magnetic quadrupole moment of a non-relativistic particle with an electric field in the background of screw dislocations with a rotating frame
- 95 GeV light Higgs in the top-pair-associated diphoton channel at the LHC in the minimal dilaton model
- Search for a scalar or pseudoscalar dilepton resonance produced in association with a massive vector boson or top quark-antiquark pair in multilepton events at = 13 TeV
- Constraints on CP-odd ALP couplings from EDM limits of fermions
- The investigation of low frequency dilaton generation
- Heavy dark matter through the dilaton portal
- Dilaton at the LHC: Complementary Probe of Composite Higgs
- Mesotuned WIMPs and Avoided Deconfinement