The Return of the WIMP: Missing Energy Signals and the Galactic Center Excess

Abstract

In a recent work, we emphasized that an excess in tri-lepton events plus missing energy observed by the ATLAS experiment at the LHC could be interpreted as a signal of low energy supersymmetry. In such a scenario the lightest neutralino mass is approximately $m_{\chi }\simeq 60$ GeV and the direct Dark Matter detection cross section is naturally below the current bound. In this work we present simple extensions of this scenario that lead to an explanation of the gamma ray excess at the center of the galaxy observed by Fermi-LAT, as well as the anti-proton excess observed by AMS-02. These extensions include the addition of a small CP violating phase in the neutralino sector or the addition of a light CP-odd Higgs scalar. Our study is of special relevance in view of a recent analysis that casts doubt on the previously accepted preference for mili-second pulsars as the origin of the galactic center excess.

12 pages

References in corpus (24)

• Results from a search for dark matter in the complete LUX exposure
• Searching for Dark Matter Annihilation in Recently Discovered Milky Way Satellites with Fermi-LAT
• Dark Matter Search Results from the Complete Exposure of the PICO-60 C${}_3$F${}_8$ Bubble Chamber
• Dark Matter Search Results from the PICO-2L C${}_3$F${}_8$ Bubble Chamber
• Limits on spin-dependent WIMP-nucleon cross section obtained from the complete LUX exposure
• Electric Dipole Moments in the MSSM Reloaded
• Higgs Mass and Unnatural Supersymmetry
• A Robust Excess in the Cosmic-Ray Antiproton Spectrum: Implications for Annihilating Dark Matter
• On the radiative corrections to the neutral Higgs boson masses in the NMSSM
• WIMPs at the Galactic Center
• Dark Matter Strikes Back at the Galactic Center
• Blind Spots for neutralino Dark Matter in the MSSM with an intermediate m_A
• NMSSM Interpretation of the Galactic Center Excess
• Updated Constraints from B Physics on the MSSM and the NMSSM
• Combined collider constraints on neutralinos and charginos
• Recursive Jigsaw Reconstruction: HEP event analysis in the presence of kinematic and combinatoric ambiguities
• Sparticles in Motion - getting to the line in compressed scenarios with the Recursive Jigsaw Reconstruction
• Showcasing HH production: Benchmarks for the (HL-)LHC
• SUSY Implications from WIMP Annihilation into Scalars at the Galactic Centre
• Two Higgs Doublets and a Complex Singlet: Disentangling the Decay Topologies and Associated Phenomenology
• The NMSSM is within Reach of the LHC: Mass Correlations & Decay Signatures
• Supersymmetry and LHC Missing Energy Signals
• Heavy Higgs as a Portal to the Supersymmetric Electroweak Sector
• Benchmark Suggestions for Resonant Double Higgs Production at the LHC for Extended Higgs Sectors

Cited by in corpus (12)

• Pseudo-Goldstone dark matter confronts cosmic ray and collider anomalies
• A common origin of muon g-2 anomaly, Galaxy Center GeV excess and AMS-02 anti-proton excess in the NMSSM
• A Search for Dark Matter Lines at the Galactic Center with 14 Years of Fermi Data
• NMSSM neutralino dark matter for CDF II $W$-boson mass and muon $g-2$ and the promising prospect of direct detection
• Heavy dark matter particle annihilation in dwarf spheroidal galaxies: radio signals at the SKA telescope
• Current bounds and future prospects of light neutralino dark matter in NMSSM
• Searching for the Higgsino-Bino Sector at the LHC
• A Closer Look at CP-Violating Higgs Portal Dark Matter as a Candidate for the GCE
• The Elusive Muonic WIMP
• Reconciling Higgs physics and pseudo-Nambu-Goldstone dark matter in the S2HDM using a genetic algorithm
• Prospects for the detection of Dark Matter with Long-lived Mediators in the Sun using the Southern Wide-field Gamma-ray Observatory
• Spin-one dark matter and gamma ray signals from the galactic center