REVIEW 7 cited by
Non-Perturbative Effect on Dark Matter Annihilation and Gamma Ray Signature from Galactic Center
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
Detection of gamma rays from dark matter annihilation in the galactic center is one of the feasible techniques to search for dark matter. We evaluate the gamma ray flux in the case that the dark matter has an electroweak SU(2)_L charge. Such dark matter is realized in the minimal supersymmetric standard model (MSSM) when the lightest SUSY particle is the Higgsino- or Wino-like neutralino. When the dark matter is heavy compared to the weak gauge bosons, the leading-order calculation of the annihilation cross sections in perturbation breaks down due to a threshold singularity. We take into account non-perturbative effects by using the non-relativistic effective theory for the two-body states of the dark matter and its SU(2)_L partner(s), and evaluate precise cross sections relevant to the gamma ray fluxes. We find that the annihilation cross sections may be enhanced by several orders of magnitude due to resonances when the dark matter mass is larger than 1 TeV. Furthermore, the annihilation cross sections in the MSSM may be changed by factors even when the mass is about 500 GeV. We also discuss sensitivities to gamma ray signals from the galactic center in the GLAST satellite detector and the large Air Cerenkov Telescope arrays.
Forward citations
Cited by 7 Pith papers
-
Probing scalar-neutrino and scalar-dark-matter interactions with PandaX-4T
PandaX-4T reports the first direct spectral search for scalar-mediated neutrino self-interactions in 136Xe double beta decay, setting new upper limits for mediator masses below 2 MeV/c².
-
Accidentally Stable Dark Matter in a Parity Solution to the Strong CP Problem
SU(2)_L×SU(2)_R bi-triplet fermions are accidentally stable dark matter in a parity solution to strong CP, with relic abundance forcing v_R ≲ 150 TeV.
-
Minimal Dark Matter: Generalized Framework and Direct-Detection Sensitivity
For Higgs-coupled minimal dark matter, the 3M2D, 5M4D, and 7M6D combinations can have direct-detection cross sections below the neutrino floor, so next-generation direct detection cannot fully exclude the model.
-
Minimal Freeze-in Dark Matter: Reviving electroweak doublet dark matter with Boltzmann suppressed freeze-in
Electroweak SU(2)_L doublet fermion dark matter with mass above 10^10 GeV (or 300 GeV if pseudo-Dirac) is produced by Boltzmann-suppressed freeze-in above the reheat temperature and evades direct detection while never...
-
Upper Bound on Parity Breaking Scale for Doublet WIMP Dark Matter
In a Parity-symmetric extension of the Standard Model with doublet-pair WIMP dark matter, thermal relic abundance requires the Parity breaking scale to be below 25-60 TeV.
-
Connecting $t$-channel Dark Matter Models to the Standard Model Effective Field Theory
One-loop SMEFT Wilson coefficients for leptophilic t-channel dark matter, combined with global fits, exclude large coupling regions, especially C_ell_ell for doublet mediators and C_ed above 3 TeV.
-
Discovering the Higgsino at CTAO-North within the Decade
CTAO-North, using high-zenith-angle observations, could discover 1.1 TeV thermal higgsino dark matter by 2030 for several plausible Galactic Center density profiles, earlier than CTAO-South.
Discussion (0). Continue with ORCID to comment.