Constraints on electromagnetic form factors of sub-GeV dark matter from the cosmic microwave background anisotropy

  title={Constraints on electromagnetic form factors of sub-GeV dark matter from the cosmic microwave background anisotropy},
  author={Gaetano Lambiase and Subhendra Mohanty and Akhilesh Nautiyal and Soumya Rao},
  journal={Physical Review D},
a Dipartimento di Fisica “E.R Caianiello”, Universit degli Studi di Salerno, Via Giovanni Paolo II, 132 84084 Fisciano (SA), Italy b Theory Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, India c Department of Physics, Malaviya National Institute of Technology, JLN Marg, Jaipur 302017,India Abstract We consider dark matter which have non-zero electromagnetic form factors like electric/magnetic dipole moments and anapole moment for fermionic dark matter and Rayleigh form… 

Figures and Tables from this paper

Cosmological Constraints on Dark Matter Interactions with Ordinary Matter
Dark matter interactions with electrons or protons during the early Universe leave imprints on the cosmic microwave background and the matter power spectrum, and can be probed through cosmological
Freezing In with lepton flavored fermions
Dark, chiral fermions carrying lepton flavor quantum numbers are natural candidates for freeze-in. Small couplings with the Standard Model fermions of the order of lepton Yukawas are `automatic' in
Soft Scattering Evaporation of Dark Matter Subhalos by Inner Galactic Gases
Xiao-jun Bi, Yu Gao1,∗ Mingjie Jin3,† Yugen Lin1,2,‡ and Qian-Fei Xiang Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China


Dipolar dark matter
If dark matter (DM) has nonzero direct or transition, electric or magnetic dipole moment then it can scatter nucleons electromagnetically in direct detection experiments. Using the results from
Loopy constraints on leptophilic dark matter and internal bremsstrahlung
A sharp and spatially extended peak in an astrophysical gamma ray spectrum would provide very strong evidence for the existence of dark matter (DM), given that there are no known astrophysical
Light dark states with electromagnetic form factors
New particles $\chi$ that are electrically neutral but couple to the electromagnetic current via higher-dimensional operators and that are sufficiently light, at or below the GeV-mass scale, can be
Annihilation of Dipolar Dark Matter to Photons
In this work we study the annihilation of fermionic dark matter, considering it as a neutral particle with nonvanishing magnetic ($M$) and electric ($D$) dipole moments. Effective cross-section of
Anapole dark matter
Abstract We consider dark matter (DM) that interacts with ordinary matter exclusively through an electromagnetic anapole, which is the only allowed electromagnetic form factor for Majorana fermions.
Sterile Neutrinos and Light Dark Matter Save Each Other
Short baseline neutrino experiments such as LSND and MiniBooNE seem to suggest the existence of light sterile neutrinos. Meanwhile, current cosmic microwave background (CMB) and big bang
Dark-Matter Electric and Magnetic Dipole Moments
1550-7998=20 We consider the consequences of a neutral dark-matter particle with a nonzero electric and/or magnetic dipole moment. Theoretical constraints, as well as constraints from direct
Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment.
The expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100  MeV/c^{2}.
A lower bound on the mass of cold thermal dark matter from Planck
We show that the new measurement of the effective number of neutrinos (Neff) by the Planck satellite can be used to set a robust lower bound on the mass of cold thermal dark matter of (MeV). Our
Constraints on the Galactic Halo Dark Matter from Fermi-LAT Diffuse Measurements
We have performed an analysis of the diffuse gamma-ray emission with the Fermi Large Area Telescope (LAT) in the Milky Way halo region, searching for a signal from dark matter annihilation or decay.