Emergent new symmetry from the Higgs shadow

Abstract

We show in this Letter how a new hidden gauge symmetry responsible for neutrino mass as well as dark matter (DM) in the Universe can be discovered through scalar mediators responsible for breaking the new symmetry. The new force mediator ($Z^{\prime }$) may be lighter than the Standard Model (SM) gauge bosons but cannot be observed in traditional searches for new gauge bosons. We highlight a novel way of discovering such a symmetry at the Large Hadron Collider (LHC) by incorporating an existing ATLAS analysis on four lepton final states which include the Higgs resonance. In addition, we show that the hidden sector also introduces flavor violation in the lepton sector which can become a significant channel of discovery for the new force.

arXiv comment8 pages, 4 figures, 4 tables

References in corpus (43)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• MadGraph 5 : Going Beyond
• Automatized One-Loop Calculations in 4 and D dimensions
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• The Physics of Heavy Z' Gauge Bosons
• Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV
• HiggsBounds: Confronting Arbitrary Higgs Sectors with Exclusion Bounds from LEP and the Tevatron
• Rivet user manual
• HiggsSignals: Confronting arbitrary Higgs sectors with measurements at the Tevatron and the LHC
• HiggsBounds 2.0.0: Confronting Neutral and Charged Higgs Sector Predictions with Exclusion Bounds from LEP and the Tevatron
• Package-X: A Mathematica package for the analytic calculation of one-loop integrals
• The Characterization of the Gamma-Ray Signal from the Central Milky Way: A Compelling Case for Annihilating Dark Matter
• Dark Matter Search Results from the PandaX-4T Commissioning Run
• Flavor Changing Effects in Theories with a Heavy Z' Boson with Family Non-Universal Couplings
• Robust Independent Validation of Experiment and Theory: Rivet version 3
• Limits to dark matter annihilation cross-section from a combined analysis of MAGIC and Fermi-LAT observations of dwarf satellite galaxies
• Electroweak Breaking and the mu problem in Supergravity Models with an Additional U(1)
• Constraining the Spin-Dependent WIMP-Nucleon Cross Sections with XENON1T
• Search for electroweak production of charginos and neutralinos in multilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Neutrino Masses in an Extended Gauge Model with E_6 Particle Content
• Physical Parameters and Renormalization of U(1)_a x U(1)_b Models
• Leptonic Flavor-changing Z0 Decays in SU(2)xU(1) Theories with Right- handed Neutrinos
• Revisiting Neutrino Self-Interaction Constraints from $Z$ and $\tau$ decays
• The Hubble tension and a renormalizable model of gauged neutrino self-interactions
• Z'-mediated Supersymmetry Breaking
• Search for lepton flavour violating decays of the Higgs boson to $\mu \tau$ and e$\tau$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for invisible Higgs boson decays in vector boson fusion at $\sqrt{s}=13$ TeV with the ATLAS detector
• LHC Constraints on a $B-L$ Gauge Model using Contur
• Neutrino Masses in Supersymmetric SU(3)_C x SU(2)_L x U(1)_Y x U(1)' Models
• Extra Higgs Boson and $Z^{\prime }$ as Portals to Signatures of Heavy Neutrinos at the LHC
• Constraining new physics with collider measurements of Standard Model signatures
• Neutralino Relic Density in a Supersymmetric U(1)' Model
• Cold Dark Matter Candidate in a Class of Supersymmetric Models with an Extra U(1)
• Testing new physics models with global comparisons to collider measurements: the Contur toolkit
• Measurements of differential cross-sections in four-lepton events in 13 TeV proton-proton collisions with the ATLAS detector
• Electroweak Baryogenesis, CDM and Anomaly-free Supersymmetric U(1)-prime Models
• One-loop effective LFV $Z{l}_k{l}_m$ vertex from heavy neutrinos within the Mass Insertion Approximation
• Electroweak phase transition in MSSM with $U(1{)}^{\prime }$ in explicit CP violation scenario
• Search for a light $Z^{\prime }$ at LHC in a neutrinophilic $U(1)$ model
• New signals for vector-like down-type quark in $U(1)$ of $E_6$

Cited by in corpus (1)

• Indian Contributions to LHC Theory