Complete Lorentz-to-Galileo dictionary for direct dark matter detection

Nobile, Eugenio Del

doi:10.1103/physrevd.98.123003

Cited by 34 publications

(36 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Predictions for the expected rate of nuclear recoil events at direct detection experiments have been refined significantly in recent years, e.g. [6]. Special emphasis has been placed on modelling the "elementary" DM-nucleon interactions and computing the associated nuclear response functions [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Non-relativistic effective interactions of spin 1 Dark Matter

Fridell

Krauss

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

We investigate the non-relativistic reduction of simplified models for spin 1 dark matter (DM) with the aim of identifying features in the phenomenology of DM-quark interactions which are specific to vector DM. In the case of DM-quark interactions mediated by a spin 1 particle, we find two DM-nucleon interaction operators arising from the nonrelativistic reduction of simplified models for spin 1 DM that are specific to spin 1 DM, and which were not considered in previous studies. They are quadratic in the momentum transfer, linear in a symmetric combination of polarisation vectors for the DM particle, and arise from simplified models which do not generate momentum transfer independent operators as leading interactions in the non-relativistic expansion of DM-nucleon scattering amplitudes. Within these simplified models, the new operators cannot be neglected when computing DM signals at direct detection experiments. For example, we find that nuclear recoil energy spectra computed by including or neglecting the new operators can differ by up to one order of magnitude for nuclear recoil energies larger than about 20 keV and DM masses below 50 GeV. Furthermore, the shape of the expected nuclear recoil spectra depends significantly on whether the new operators are taken into account or not. Finally, neglecting the contribution to DM direct detection signals from the new operators leads to inaccurate conclusions when assessing the compatibility of a future direct detection signal with CMB constraints on the DM relic density, especially when the number of signal events is small, e.g. O(1).

show abstract

Section: Introductionmentioning

confidence: 99%

Non-relativistic effective interactions of spin 1 Dark Matter

Fridell

Krauss

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…where F µν is the electromagnetic field strength tensor and χ is the DM field, assumed here to be a Dirac particle. Such operators correspond, respectively, to magnetic-dipole and electric-dipole DM and imply a long-range interaction [66] 1 . The dimension-six operators are…”

Section: Relativistic Effective Modelsmentioning

confidence: 99%

On the sensitivity of present direct detection experiments to WIMP–quark and WIMP–gluon effective interactions: A systematic assessment and new model–independent approaches

Kang

Scopel

Tomar

et al. 2020

Astroparticle Physics

View full text Add to dashboard Cite

Assuming for Weakly Interacting Massive Particles (WIMPs) a Maxwellian velocity distribution in the Galaxy we provide an assessment of the sensitivity of existing Dark Matter (DM) direct detection (DD) experiments to operators up to dimension 7 of the relativistic effective field theory describing dark matter interactions with quarks and gluons . In particular we focus on a systematic approach, including an extensive set of experiments and large number of couplings, both exceeding for completeness similar analyses in the literature. The relativistic effective theory requires to fix one coupling for each quark flavor, so in principle for each different combination the bounds should be recalculated starting from direct detection experimental data. To address this problem we propose an approximate model-independent procedure that allows to directly calculate the bounds for any combination of couplings in terms of model-independent limits on the Wilson coefficients of the non-relativistic theory expressed in terms of the WIMP mass and of the neutron-to-proton coupling ratio c n /c p . We test the result of the approximate procedure against that of a full calculation, and discuss its possible pitfalls and limitations. We also provide a simple interpolating interface in Python that allows to apply our method quantitatively.

show abstract

“…Thus, the dominant one-loop interaction is the anapole moment [85]. When taking the non-relativistic limit, the anapole moment gives contributions to the O 8 and O 9 operators [86,87], which are velocity and momentum dependent. In terms of the fundamental parameters of the model, the corresponding couplings read…”

Section: Direct Dm Detection Prospectsmentioning

confidence: 99%

B anomalies and dark matter: a complex connection

et al. 2019

View full text Add to dashboard Cite

We study an extension of the Standard Model that addresses the hints of lepton flavour universality violation observed in B → K ( * ) l + l − decays at LHCb, while providing a viable candidate for dark matter. The model incorporates two new scalar fields and a Majorana fermion that induce one-loop contributions to B meson decays. We show that agreement with observational data requires the new couplings to be complex and that the Majorana fermion can reproduce the observed dark matter relic density. This combination of cosmological and flavour constraints sets an upper limit on the dark matter and mediator masses. We have studied LHC dijet and dilepton searches, finding that they rule out large regions of parameter space by setting lower bounds on the dark matter and mediator masses. In particular, dilepton bounds are much more constraining in a future high-luminosity phase. Finally, we have computed the scattering cross section of dark matter off nuclei and compared it to the sensitivity of current and future direct detection experiments, showing that parts of the parameter space could be accessible in the future to multi-ton experiments. Future collider and direct DM searches complement each other to probe large areas of the parameter space of this model. 1

show abstract

Complete Lorentz-to-Galileo dictionary for direct dark matter detection

Cited by 34 publications

References 44 publications

Non-relativistic effective interactions of spin 1 Dark Matter

Non-relativistic effective interactions of spin 1 Dark Matter

On the sensitivity of present direct detection experiments to WIMP–quark and WIMP–gluon effective interactions: A systematic assessment and new model–independent approaches

B anomalies and dark matter: a complex connection

Contact Info

Product

Resources

About