Absorption of sub-MeV fermionic dark matter by electron targets

@article{Dror2021AbsorptionOS,
  title={Absorption of sub-MeV fermionic dark matter by electron targets},
  author={Jeff Asaf Dror and Gilly Elor and Robert McGehee and Tien-Tien Yu},
  journal={Physical Review D},
  year={2021}
}
We study a new class of signals where fermionic dark matter is absorbed by bound electron targets. Fermionic absorption signals in direct detection and neutrino experiments are sensitive to dark matter with sub-MeV mass, probing a region of parameter space in which dark matter is otherwise challenging to detect. We calculate the rate and energy deposition spectrum in xenon-based detectors, making projections for current and future experiments. We present two possible models that display… 

Figures and Tables from this paper

Revisiting the fermionic dark matter absorption on electron target

We perform a systematic study of the fermionic DM absorption interactions on electron target in the context of effective field theory. The fermionic DM absorption is not just sensitive to sub-MeV DM

Loop effect in the coherent neutrino-nucleus scattering

Abstract A connection between the neutrino and an exotic fermion is described in the general neutrino model. In this model the neutrinos can convert into the new fermion and thus the interaction

Boosting through the Darkness : Bounds on boosted dark matter from direct detection

The recoil threshold of Direct Detection (DD) experiments limits the mass range of Dark Matter (DM) particles that can be detected, with most DD experiments being blind to sub-MeV DM particles.

Boosting through the Darkness

The recoil threshold of Direct Detection (DD) experiments limits the mass range of Dark Matter (DM) particles that can be detected, with most DD experiments being blind to sub-MeV DM particles.

Dark magnetic dipole property in fermionic absorption by nucleus and electrons

The fermionic dark matter (DM) absorption by nucleus or electron targets provides a distinctive signal to search for sub-GeV DM. We consider a Dirac fermion DM charged under a dark gauge group and

Solar active-sterile neutrino conversion with atomic effects at dark matter direct detection experiments

The recent XENON1T excess can be explained by the solar active-sterile neutrino conversion with bound electrons via light mediator. Nevertheless, the atomic effects are usually omitted in the solar

Constraints on general neutrino interactions with exotic fermion from neutrino-electron scattering experiments

neutrino-electron scattering experiments Zikang Chen,1, ∗ Tong Li,2, † and Jiajun Liao1, ‡ 1School of Physics, Sun Yat-Sen University, Guangzhou 510275, China 2School of Physics, Nankai University,

Making the Universe at 20 MeV

We present a testable mechanism of low-scale baryogenesis and dark matter production in which neither the baryon nor lepton number are violated. Charged $D$ mesons are produced out of equilibrium at

Directional detection of light dark matter from three-phonon events in superfluid He4

We present the analysis of a new signature for light dark matter detection with superfluid $^4$He: the emission of three phonons. We show that, in a region of mass below the MeV, the kinematics of

References

SHOWING 1-10 OF 149 REFERENCES

arXiv:1606.07001 [astro-ph.IM

  • JCAP 11,
  • 2016

arXiv:2007.08796 [physics.ins-det

  • (XENON),
  • 2020

JHEP 02

  • 134
  • 2020

Phys

  • Rev. Lett. 124, 18
  • 2020

Particle Data Group)

  • Review of Particle Physics, Phys. Rev. D98,
  • 2018

Directly Detecting Signals from Absorption of Fermionic Dark Matter.

It is shown that fermionic dark matter absorption can be observed in direct detection and neutrino experiments while ensuring consistency with the observed dark matter abundance and required lifetime.

Evidence for the Freezing of Supercooled Water by Means of Neutron Irradiation.

The cloud and bubble chambers have historically been used for particle detection, capitalizing on supersaturation and superheating respectively. Here we present the snowball chamber, which utilizes

Constraints on dark matter to dark radiation conversion in the late universe with DES-Y1 and external data

We study a phenomenological class of models where dark matter converts to dark radiation in the low redshift epoch. This class of models, dubbed DMDR, characterizes the evolution of comoving dark

Dependence of dark matter - electron scattering on the galactic dark matter velocity distribution

The rate of dark matter-electron scattering depends on the underlying velocity distribution of the dark matter halo. Importantly, dark matter-electron scattering is particularly sensitive to the

Excess electronic recoil events in XENON1T

We report results from searches for new physics with low-energy electronic recoil data recorded with the XENON1T detector. With an exposure of 0.65 tonne-years and an unprecedentedly low background
...