Simplified Dark Matter Models for the Galactic Center Gamma-Ray Excess

Abstract

Motivated by the gamma-ray excess observed from the region surrounding the Galactic Center, we explore particle dark matter models that could potentially account for the spectrum and normalization of this signal. Taking a model-independent approach, we consider an exhaustive list of tree-level diagrams for dark matter annihilation, and determine which could account for the observed gamma-ray emission while simultaneously predicting a thermal relic abundance equal to the measured cosmological dark matter density. We identify a wide variety of models that can meet these criteria without conflicting with existing constraints from direct detection experiments or the Large Hadron Collider (LHC). The prospects for detection in near future dark matter experiments and/or the upcoming 14 TeV LHC appear quite promising.

arXiv comment36 pages (20 are appendices); v4: some minor corrections in formulas in appendices, conclusions unchanged

References in corpus (71)

• Observation of an anomalous positron abundance in the cosmic radiation
• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Dark Matter Results from 225 Live Days of XENON100 Data
• Minimal Flavour Violation: an effective field theory approach
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope
• New results from DAMA/LIBRA
• Results from the Final Exposure of the CDMS II Experiment
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• Dark Matter Results from 100 Live Days of XENON100 Data
• Results from 730 kg days of the CRESST-II Dark Matter Search
• Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
• First Results from the XENON10 Dark Matter Experiment at the Gran Sasso National Laboratory
• Constraints on Dark Matter from Colliders
• Pulsars as the Sources of High Energy Cosmic Ray Positrons
• Search for an Annual Modulation in a P-type Point Contact Germanium Dark Matter Detector
• On The Origin Of The Gamma Rays From The Galactic Center
• Z-prime Gauge Bosons at the Tevatron
• Detection of a Gamma-Ray Source in the Galactic Center Consistent with Extended Emission from Dark Matter Annihilation and Concentrated Astrophysical Emission
• Dark Matter Constraints from Observations of 25 Milky Way Satellite Galaxies with the Fermi Large Area Telescope
• Dark Matter and Pulsar Model Constraints from Galactic Center Fermi-LAT Gamma Ray Observations
• First Dark Matter Results from the XENON100 Experiment
• The Tevatron at the Frontier of Dark Matter Direct Detection
• A Search for WIMPs with the First Five-Tower Data from CDMS
• Constraints on Light Majorana Dark Matter from Colliders
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Quark mass thresholds in QCD thermodynamics
• The Large Underground Xenon (LUX) Experiment
• Limits on spin-independent WIMP-nucleon interactions from the two-tower run of the Cryogenic Dark Matter Search
• LEP Shines Light on Dark Matter
• First dark matter search results from a 4-kg CF${}_3$I bubble chamber operated in a deep underground site
• Maverick dark matter at colliders
• Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data
• On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC
• First Results from the Cryogenic Dark Matter Search in the Soudan Underground Lab
• Search for new particles decaying into dijets in proton-antiproton collisions at sqrt(s) = 1.96 TeV
• The Scalar Strange Content of the Nucleon from Lattice QCD
• Exclusion Limits on the WIMP-Nucleon Cross-Section from the Cryogenic Dark Matter Search
• DAMA/LIBRA and leptonically interacting Dark Matter
• Beyond Effective Field Theory for Dark Matter Searches at the LHC
• Limits on spin-dependent WIMP-nucleon cross-sections from the XENON10 experiment
• The Consistency of Fermi-LAT Observations of the Galactic Center with a Millisecond Pulsar Population in the Central Stellar Cluster
• Limits on WIMP-nucleon interactions with CsI(Tl) crystal detectors
• Improved Exclusion Limits from the EDELWEISS WIMP Search
• Dark Matter distribution in the Milky Way: microlensing and dynamical constraints
• Evidence Of Dark Matter Annihilations In The WMAP Haze
• Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at sqrt(s)=8 TeV with the ATLAS detector
• Search for supersymmetry in hadronic final states with missing transverse energy using the variables AlphaT and b-quark multiplicity in pp collisions at 8 TeV
• Unitarity and Monojet Bounds on Models for DAMA, CoGeNT, and CRESST-II
• Deducing the nature of dark matter from direct and indirect detection experiments in the absence of collider signatures of new physics
• Pulsars Cannot Account for the Inner Galaxy's GeV Excess
• Extended gamma-ray emission from Coy Dark Matter
• Matrix element analyses of dark matter scattering and annihilation
• Improved Limits on Spin-Dependent WIMP-Proton Interactions from a Two Liter CF${}_3$I Bubble Chamber
• Simplified Models for Dark Matter Interacting with Quarks
• Flavored Dark Matter, and Its Implications for Direct Detection and Colliders
• Search for the neutral Higgs bosons of the Minimal Supersymmetric Standard Model in pp collisions at sqrt(s)=7 TeV with the ATLAS detector
• Probing dark matter couplings to top and bottom at the LHC
• Limits on WIMP cross-sections from the NAIAD experiment at the Boulby Underground Laboratory
• Antiprotons from Dark Matter: Current constraints and future sensitivities
• Limits on spin-dependent WIMP-nucleon interactions from the Cryogenic Dark Matter Search
• Effective WIMPs
• Flavored Dark Matter and R-Parity Violation
• Search for narrow resonances and quantum black holes in inclusive and b-tagged dijet mass spectra from pp collisions at sqrt(s) = 7 TeV
• Search for neutral MSSM Higgs bosons decaying to tau^+ tau^- pairs in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton-proton collisions at 7 TeV
• Constraints on particle dark matter from cosmic-ray antiprotons
• Gamma ray emission in Fermi bubbles and Higgs portal dark matter
• The NAIAD experiment for WIMP searches at Boulby mine and recent results
• Fermi Bubbles under Dark Matter Scrutiny Part II: Particle Physics Analysis
• Heavy-quark contribution to the proton's magnetic moment

Cited by in corpus (184)

• The Waning of the WIMP? A Review of Models, Searches, and Constraints
• A Tale of Tails: Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics
• Implications of unitarity and gauge invariance for simplified dark matter models
• A taste of dark matter: Flavour constraints on pseudoscalar mediators
• A Renormalizable Model for the Galactic Center Gamma Ray Excess from Dark Matter Annihilation
• Dark Matter through the Higgs portal
• A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• Search for new physics in final states with an energetic jet or a hadronically decaying W or Z boson and transverse momentum imbalance at $\sqrt{s}=$ 13 TeV
• Hidden On-Shell Mediators for the Galactic Center Gamma-Ray Excess
• Toward (Finally!) Ruling Out Z and Higgs Mediated Dark Matter Models
• WIMPs at the Galactic Center
• Fitting the Galactic Center Gamma-Ray Excess with Cascade Annihilations
• Flavored Dark Matter and the Galactic Center Gamma-Ray Excess
• Higgs portal vector dark matter for $\mathrm{GeV}$ scale $\gamma$-ray excess from galactic center
• Dark Matter Complementarity and the Z${}^{\prime }$ Portal
• The Effective Hooperon
• Flavor-specific scalar mediators
• A weighty interpretation of the Galactic Centre excess
• Pseudoscalar Portal Dark Matter
• Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at sqrt(s) = 13 TeV
• Gravitational waves and electroweak baryogenesis in a global study of the extended scalar singlet model
• Hidden Sector Dark Matter Models for the Galactic Center Gamma-Ray Excess
• Challenges in Explaining the Galactic Center Gamma-Ray Excess with Millisecond Pulsars
• $Z_{BL}^{\prime }$ portal dark matter and LHC Run-2 results
• Robust collider limits on heavy-mediator Dark Matter
• Updated cosmic-ray and radio constraints on light dark matter: Implications for the GeV gamma-ray excess at the Galactic center
• Bounds on Cosmic Ray-Boosted Dark Matter in Simplified Models and its Corresponding Neutrino-Floor
• The Galactic Center Excess from the Bottom Up
• ColliderBit: a GAMBIT module for the calculation of high-energy collider observables and likelihoods
• Multi-Step Cascade Annihilations of Dark Matter and the Galactic Center Excess
• Boosted Dark Matter in IceCube and at the Galactic Center
• Pseudoscalar Mediators: A WIMP model at the Neutrino Floor
• Anomaly-Free Dark Matter Models are not so Simple
• Combined analysis of effective Higgs portal dark matter models
• Z-portal dark matter
• Galactic center $\gamma$-ray excess in hidden sector DM models with dark gauge symmetries: local $Z_3$ symmetry as an example
• A General Analysis of Direct Dark Matter Detection: From Microphysics to Observational Signatures
• Axial Vector $Z^{\prime }$ and Anomaly Cancellation
• Dark matter assisted lepton anomalous magnetic moments and neutrino masses
• Two new catalogs of blazar candidates in the WISE infrared sky
• Sterile Neutrino portal to Dark Matter II: Exact Dark symmetry
• Antiproton constraints on the GeV gamma-ray excess: a comprehensive analysis
• The 96 GeV Diphoton Excess in the Seesaw Extensions of the Natural NMSSM
• Muon $g-2$ and $B$-anomalies from Dark Matter
• The Return of the Templates: Revisiting the Galactic Center Excess with Multi-Messenger Observations
• Search for neutral MSSM Higgs bosons decaying into a pair of bottom quarks
• The High-Energy Tail of the Galactic Center Gamma-Ray Excess
• The Gamma-Ray Luminosity Function of Millisecond Pulsars and Implications for the GeV Excess
• Towards a realistic astrophysical interpretation of the gamma-ray Galactic center excess
• Mono-W Dark Matter Signals at the LHC: Simplified Model Analysis
• Z' Mediated Dark Matter Models for the Galactic Center Gamma-Ray Excess
• Two component WIMP-FImP dark matter model with singlet fermion, scalar and pseudo scalar
• A description of the Galactic Center excess in the Minimal Supersymmetric Standard Model
• Supersymmetric Sub-Electroweak Scale Dark Matter, the Galactic Center Gamma-ray Excess, and Exotic Decays of the 125 GeV Higgs Boson
• The Gamma-Ray Pulsar Population of Globular Clusters: Implications for the GeV Excess
• Minimal Dirac Neutrino Mass Models from $U(1{)}_R$ Gauge Symmetry and Left-Right Asymmetry at Colliders
• Nonthermal Two Component Dark Matter Model for Fermi-LAT $\gamma$-ray excess and 3.55 keV X-ray Line
• Class of Higgs-portal Dark Matter models in the light of gamma-ray excess from Galactic center
• Towards a Supersymmetric Description of the Fermi Galactic Center Excess
• Loop-induced direct detection signatures from CP-violating scalar mediators
• Low Mass X-Ray Binaries in the Inner Galaxy: Implications for Millisecond Pulsars and the GeV Excess
• Fits to the Fermi-LAT GeV excess with RH sneutrino dark matter: implications for direct and indirect dark matter searches and the LHC
• Common Origin of Neutrino Mass and Dark Matter from Anomaly Cancellation Requirements of a $U(1{)}_{B-L}$ Model
• Millisecond Pulsars, TeV Halos, and Implications For The Galactic Center Gamma-Ray Excess
• Model-independent analysis of the DAMPE excess
• Improved Cosmic-Ray Injection Models and the Galactic Center Gamma-Ray Excess
• Hidden sector explanation of $B$-decay and cosmic ray anomalies
• Statistical Analyses of Higgs- and Z-Portal Dark Matter Models
• A reappraisal of constraints on $Z^{\prime }$ models from unitarity and direct searches at the LHC
• Annihilating Asymmetric Dark Matter
• Multimediator models for the galactic center gamma ray excess
• Dark Matter from Freeze-In via the Neutrino Portal
• LUX likelihood and limits on spin-independent and spin-dependent WIMP couplings with LUXCalc
• Augury of Darkness: The Low-Mass Dark Z' Portal
• Les Houches Lectures on Indirect Detection of Dark Matter
• The $\text{Fermi}$-LAT gamma-ray excess at the Galactic Center in the singlet-doublet fermion dark matter model
• Constraining Dark Matter Interactions with Pseudoscalar and Scalar Mediators Using Collider Searches for Multi-jets plus Missing Transverse Energy
• Multi-Component Dark Matter in a Non-Abelian Dark Sector
• NMSSM explanations of the Galactic center gamma ray excess and promising LHC searches
• Suppressing the Scattering of WIMP DM with Nucleons in Supersymmetric Theories
• Vector Fermion-Portal Dark Matter: Direct Detection and Galactic Center Gamma-Ray Excess
• Evidence of TeV Halos Around Millisecond Pulsars
• The interpretation for Galactic Center Excess and Electroweak Phase Transition in the NMSSM
• Explaining the DAMPE data with scalar dark matter and gauged $U(1{)}_{L_e-L_{\mu }}$ interaction
• Confronting Galactic and Extragalactic $\gamma$-ray observed by Fermi-LAT with Annihilating Dark Matter in Inert Higgs Doublet Model
• Galactic Center Gamma-Ray Excess through a Dark Shower
• Scalar dark matter interpretation of the DAMPE data with U(1) gauge interactions
• $SU(2{)}_X$ Vector DM and Galactic Center Gamma-Ray Excess
• Simplified Dark Matter Models Confront the Gamma Ray Excess
• Type-III two Higgs doublet model plus a pseudoscalar confronted with $h\to \mu \tau$, muon $g-2$ and dark matter
• Revisiting the direct detection of dark matter in simplified models
• Confronting the Galactic Center Gamma Ray Excess With a Light Scalar Dark Matter
• Type III Seesaw for Neutrino Masses in $U(1{)}_{B-L}$ Model with Multi-component Dark Matter
• Asymptotically Safe Dark Matter
• Two-portal Dark Matter
• Invisible Higgs Decays to Hooperons in the NMSSM
• Right-handed neutrino dark matter in the classically conformal U(1)' extended Standard Model
• Galactic Gamma Ray Excess and Dark Matter Phenomenology in a $U(1{)}_{B-L}$ Model
• Ruling out $\sim 100-300$ GeV thermal relic annihilating dark matter by radio observation of the Andromeda galaxy
• Radiative Neutrino Mass with $Z_3$ Dark matter: From Relic Density to LHC Signatures
• Searches for dark matter signals in simplified models at future hadron colliders
• Point Sources from Dissipative Dark Matter
• A two-component vector WIMP -- fermion FIMP dark matter model with an extended seesaw mechanism
• On Anomaly-Free Dark Matter Models
• Galactic Center Gamma Ray Excess in a Radiative Neutrino Mass Model
• A Systematic Study of Hidden Sector Dark Matter: Application to the Gamma-Ray and Antiproton Excesses
• Confronting Galactic center and dwarf spheroidal gamma-ray observations with cascade annihilation models
• New or $\nu$ Missing Energy? Discriminating Dark Matter from Neutrino Interactions at the LHC
• Detecting Asymmetric Dark Matter in the Sun with Neutrinos
• Cancellation in Dark Matter-Nucleon Interactions: the Role of Non-Standard-Model-like Yukawa Couplings
• Saving the MSSM from the Galactic Center Excess
• Common Origin of 3.55 keV X-Ray Line and Galactic Center Gamma Ray Excess in a Radiative Neutrino Mass Model
• Scalar dark matter explanation of the DAMPE data in the minimal Left-Right symmetric model
• Updated Collider and Direct Detection Constraints on Dark Matter Models for the Galactic Center Gamma-Ray Excess
• Known Radio Pulsars Do Not Contribute to the Galactic Center Gamma-Ray Excess
• Dark Higgs Channel for FERMI GeV $\gamma$-ray Excess
• Lepton-Flavor Violating Mediators
• Wavelet-Based Techniques for the Gamma-Ray Sky
• Determining the Quantum Numbers of Simplified Models in $t\bar{t}X$ production at the LHC
• Tau Portal Dark Matter models at the LHC
• Phenomenological analysis of multi-pseudoscalar mediated dark matter models
• Right-handed Neutrino Dark Matter, Neutrino Masses, and non-Standard Cosmology in a 2HDM
• $Z^{\prime }$ portal dark matter in the minimal $B-L$ model
• Large neutrino mass in cosmology and keV sterile neutrino dark matter from a dark sector
• Muonphilic Dark Matter explanation of gamma-ray galactic center excess: a comprehensive analysis
• A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources
• Constraints on the Sommerfeld-enhanced dark matter annihilation from the gamma rays of subhalos and dwarf galaxies
• Dark Initial State Radiation and the Kinetic Mixing Portal
• Thick Branes in Extra Dimensions and Suppressed Dark Couplings
• DAMPE Excess from Leptophilic Vector Dark Matter: Model Independent Approach
• Signatures of top flavour-changing dark matter
• Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism
• Explaining Low Energy $\gamma$-ray Excess from the Galactic Centre using a Two Component Dark Matter Model
• Vector Boson Dark Matter From Trinification
• Interpreting the galactic center gamma-ray excess in the NMSSM
• Light Neutrinophilic Dark Matter from a Scotogenic Model
• Relativistic and nonrelativistic annihilation of dark matter: a sanity check using an effective field theory approach
• Interpreting the Fermi-LAT gamma ray excess in the simplified framework
• The Galactic Center Excess from Z3 Scalar Semi-Annihilations
• Top partners tackling vector dark matter
• Anomaly-free chiral $U(1{)}_D$ and its scotogenic implication
• A Minimal Model of Torsion Mediated Dark Matter
• Revisiting simplified dark matter models in terms of AMS-02 and Fermi-LAT
• Dark Matter perspective of Left-Right symmetric gauge model
• Constraining the $3-3-1$ model with heavy neutral leptons using $(g-2{)}_{\mu }$ and dark matter observables
• Everything You Always Wanted to Know About Dark Matter Elastic Scattering Through Higgs Loops But Were Afraid to Ask
• Effective Field Theory of Dark Matter from membrane inflationary paradigm
• Possible explanation of indirect gamma ray signatures from hidden sector fermionic dark matter
• Non-adiabatic evolution of dark sector in the presence of $U(1{)}_{L_{\mu }-L_{\tau }}$ gauge symmetry
• Light Axion-Like Particles at Future Lepton Colliders
• Dark Matter Direct Detection in $t$-channel mediator models
• Exploring Constraints on Simplified Dark Matter Model Through Flavour and Electroweak Observables
• Indirect Detection Imprint of a CP Violating Dark Sector
• Interpretations of galactic center gamma-ray excess confronting the PandaX-II constraints on dark matter-neutron spin-dependent scatterings in the NMSSM
• Search for Scalar Dark Matter via Pseudoscalar Portal Interactions: In Light of the Galactic Center Gamma-Ray Excess
• Phenomenology of Colored Radiative Neutrino Mass Model and Its Implications on the Cosmic-ray Observations
• Dwarf Galaxy $\gamma$-excess and 3.55 keV X-ray Line In A Nonthermal Dark Matter Model
• Dark matter mass from relic abundance, an extra $U(1)$ gauge boson, and active-sterile neutrino mixing
• The Cherenkov Telescope Array Will Test Whether Pulsars Generate the Galactic Center Gamma-Ray Excess
• Low Energy Gamma Ray Excess Confronting a Singlet Scalar Extended Inert Doublet Dark Matter Model
• Dark Matter Is The New BBN
• Search for pseudoscalar-mediated WIMPs in $t\to c$ transitions with missing energy
• Fermionic Singlet Dark Matter in One-Loop Solutions to the $R_K$ Anomaly: A Systematic Study
• Fat brane, dark matter and localized kinetic terms in six dimensions
• Dark Matter phenomenology : from simplified WIMP models to refined alternative solutions
• Scalar dark matter, Neutrino mass and Leptogenesis in a $\mathrm{U}(1{)}_{\mathrm{B}-\mathrm{L}}$ model
• The Bactrian Effect: Multiple Resonances and Light Dirac Dark Matter
• Constraining the Secluded and Catalyzed Annihilation Dark Matter with Fermi-LAT and Planck Data
• Constraining axion-gluon coupling in monohadron processes
• Detecting Bosonic Dark Matter with Neutron Stars
• When Freeze-out occurs due to a non-Boltzmann suppression: A study of degenerate dark sector
• Verifiable type-III seesaw and dark matter in a gauged $\mathbf{U}(1{)}_{\mathrm{B}-\mathrm{L}}$ symmetric model
• UV completion of an axial, leptophobic, $Z^{\prime }$
• Investigating the dark matter minispikes with the gamma-ray signal from the halo of M31
• Dark Matter Isocurvature from Curvature
• Dark matter properties implied by gamma ray interstellar emission models
• Reviving MeV-GeV Indirect Detection with Inelastic Dark Matter
• Dark Matter interactions in an $S_4\times Z_5$ flavor symmetry framework
• Search for Higgs-like particles produced in association with bottom quarks in proton-antiproton collisions
• Large Neutrino-Dark Matter Interactions: From Effective Field Theory to Ultraviolet Completions
• Probing Bottom-flavored Scalar Dark Matters at Loop Level
• Searching for dark matter annihilation in the Sun with the IceCube Upgrade
• Jets and Photons Spectroscopy of Higgs-ALP Interactions
• Sterile neutrino portals to Majorana dark matter: effective operators and UV completions