Modulation effects in dark matter-electron scattering experiments

Lee, Samuel K.; Lisanti, Mariangela; Mishra-Sharma, Siddharth; Safdi, Benjamin R.

doi:10.1103/physrevd.92.083517

Cited by 158 publications

(201 citation statements)

References 68 publications

(120 reference statements)

Supporting

Mentioning

198

Contrasting

Order By: Relevance

“…One irreducible background is from neutrino-electron scattering, which sets the ultimate limit to the sub-GeV DM direct detections. Fortunately, the DM annual modulation effect from the motion of the earth can be employed to reduce the neutrino background [39,41,42]. The teens MeV DM of concern could be probed via the inelastic processes of DM-electron scatterings, e.g.…”

Section: Dm-electron Scatteringmentioning

confidence: 99%

The new interaction suggested by the anomalous $$^8$$ 8 Be transition sets a rigorous constraint on the mass range of dark matter

Jia

2016

Eur. Phys. J. C

View full text Add to dashboard Cite

The WIMPs are considered to belong to the favorable dark matter (DM) candidates, but the upper bounds on the interactions between DM and standard model (SM) particles obtained by the upgraded facilities of DM direct detection get lower and lower. Researchers turn their attention to the search for less massive DM candidates, i.e. light dark matter of the MeV scale. The recently measured anomalous transition in 8 Be suggests that there exists a vectorial boson which may mediate the interaction between DM and SM particles. Based on this scenario, we combine the relevant cosmological data to constrain the mass range of DM, and we have found that there exists a model parameter space where the requirements are satisfied, a range of 10.4 m φ 16.7 MeV for scalar DM, and 13.6 m V 16.7 MeV for vectorial DM is demanded. Then a possibility of directly detecting such light DM particles via DM-electron scattering is briefly studied in this framework.

show abstract

Section: Dm-electron Scatteringmentioning

confidence: 99%

The new interaction suggested by the anomalous $$^8$$ 8 Be transition sets a rigorous constraint on the mass range of dark matter

Jia

2016

Eur. Phys. J. C

View full text Add to dashboard Cite

show abstract

“…Current direct-detection bounds from XENON10 [28] are not yet sensitive to in the range predicted by the ELDER scenario, while the collider bounds from LEP-2 depend strongly on the mass of the particle mediating the DM-SM scattering, and cannot be used to put robust constrains on . Interestingly, proposed dedicated germanium or silicon-based electron-recoil direct detection experiments [29,30] and superconducting detectors [31] are expected to directly probe the ELDER scenario, which gives a scattering cross-section with electrons, σ scat ∼ 10 −40 − 10 −41 cm 2 . Finally, the strong 3 → 2 self-annihilations required in the ELDER scenario generically imply a large contribution to χχ → χχ elastic self-scattering.…”

Section: Constraintsmentioning

confidence: 99%

Elastically Decoupling Dark Matter

et al. 2016

View full text Add to dashboard Cite

We present a novel dark matter candidate, an Elastically Decoupling Relic (ELDER), which is a cold thermal relic whose present abundance is determined by the cross-section of its elastic scattering on Standard Model particles. The dark matter candidate is predicted to have a mass ranging from a few to a few hundred MeV, and an elastic scattering cross-section with electrons, photons and/or neutrinos in the 10 −3 − 1 fb range.

show abstract

“…The process of dark matter-electron scattering is derived and discussed in references [9][10][11][12]. In this section we summarise the key findings of [10], which are necessary to discuss the expected sensitivity for RNDR DEPFET dark matter detectors in Sect.…”

Section: Detection Of Mev Dark Matter By Dark Matter-electron Scatteringmentioning

confidence: 99%

“…This topic has been discussed in detail in the literature, e.g. in [9][10][11][12], and is only summarised here.…”

Section: Introductionmentioning

confidence: 99%

DEPFET detectors for direct detection of MeV Dark Matter particles

et al. 2017

View full text Add to dashboard Cite

The existence of dark matter is undisputed, while the nature of it is still unknown. Explaining dark matter with the existence of a new unobserved particle is among the most promising possible solutions. Recently dark matter candidates in the MeV mass region received more and more interest. In comparison to the mass region between a few GeV to several TeV, this region is experimentally largely unexplored. We discuss the application of a RNDR DEPFET semiconductor detector for direct searches for dark matter in the MeV mass region. We present the working principle of the RNDR DEPFET devices and review the performance obtained by previously performed prototype measurements. The future potential of the technology as dark matter detector is discussed and the sensitivity for MeV dark matter detection with RNDR DEPFET sensors is presented. Under the assumption of six background events in the region of interest and an exposure of 1 kg year a sensitivity of about σ e = 10 −41 cm 2 for dark matter particles with a mass of 10 MeV can be reached.

show abstract

Modulation effects in dark matter-electron scattering experiments

Cited by 158 publications

References 68 publications

The new interaction suggested by the anomalous $$^8$$ 8 Be transition sets a rigorous constraint on the mass range of dark matter

The new interaction suggested by the anomalous $$^8$$ 8 Be transition sets a rigorous constraint on the mass range of dark matter

Elastically Decoupling Dark Matter

DEPFET detectors for direct detection of MeV Dark Matter particles

Contact Info

Product

Resources

About