Resonant enhancements in weakly interacting massive particle capture by the earth

Gould, Andrew

doi:10.1086/165653

Cited by 583 publications

(785 citation statements)

References 9 publications

Supporting

Mentioning

761

Contrasting

Unclassified

Order By: Relevance

“…C ∼ σ Xn ρ X m −2 X , where σ Xn is the scattering cross section with SM nucleons (assumed to be elastic and spin-independent) [41,46]. 17 Summing over capture rates from the various elements in the Sun (the main contributions are from the CNO elements) using a standard solar model [47], we obtain (taking the couplings to protons and neutrons to be the same).…”

Section: Jhep07(2015)133mentioning

confidence: 99%

Signatures of large composite Dark Matter states

Hardy

Lasenby

March-Russell

et al. 2015

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:We investigate the interactions of large composite dark matter (DM) states with the Standard Model (SM) sector. Elastic scattering with SM nuclei can be coherently enhanced by factors as large as A 2 , where A is the number of constituents in the composite state (there exist models in which DM states of very large A 10 8 may be realised). This enhancement, for a given direct detection event rate, weakens the expected signals at colliders by up to 1/A. Moreover, the spatially extended nature of the DM states leads to an additional, characteristic, form factor modifying the momentum dependence of scattering processes, altering the recoil energy spectra in direct detection experiments. In particular, energy recoil spectra with peaks and troughs are possible, and such features could be confirmed with only O(50) events, independently of the assumed halo velocity distribution. Large composite states also generically give rise to low-energy collective excitations potentially relevant to direct detection and indirect detection phenomenology. We compute the form factor for a generic class of such excitations -quantised surface modes -finding that they can lead to coherently-enhanced, but generally sub-dominant, inelastic scattering in direct detection experiments. Finally, we study the modifications to capture rates in astrophysical objects that follow from the elastic form factor, as well as the effects of inelastic interactions between DM states once captured. We argue that inelastic interactions may lead to the DM collapsing to a dense configuration at the centre of the object.

show abstract

Section: Jhep07(2015)133mentioning

confidence: 99%

Signatures of large composite Dark Matter states

Hardy

Lasenby

March-Russell

et al. 2015

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…(6.16) One then does the angular integration, restricting the final angle such that the final state particle is below the escape velocity, and performs the summation over the appropriate nuclei distributions. Thus computed, the capture rate of neutralinos in an astrophysical body of mass M (recall the mass of the sun is M = 1.1 × 10 57 GeV and the mass of the earth is M = 3.4×10 51 GeV) can be written as [502,503,504,505] …”

Section: Neutralino Indirect Detectionmentioning

confidence: 99%

“…Because the local speed after the elastic scattering is [502,506] 18) where θ cm is the center of mass scattering angle, there is a greater loss of energy after scattering when m χ ≈ m i (and hence a "resonant" enhancement [502] in the capture rate). Because the earth has heavy elements, there is a resonant enhancement of capture for the mass range 10 GeV ≤ m χ ≤ 75 GeV, (6.19) with the peak near the iron mass of m F e ≈ 56 GeV.…”

Section: Neutralino Indirect Detectionmentioning

confidence: 99%

The soft supersymmetry-breaking Lagrangian: theory and applications

Chung

Everett

Kane³

et al. 2005

Physics Reports

415

339

View full text Add to dashboard Cite

After an introduction recalling the theoretical motivation for low energy (100 GeV to TeV scale) supersymmetry, this review describes the theory and experimental implications of the soft supersymmetry-breaking Lagrangian of the general minimal supersymmetric standard model (MSSM). Extensions to include neutrino masses and nonminimal theories are also discussed. Topics covered include models of supersymmetry breaking, phenomenological constraints from electroweak symmetry breaking, flavor/CP violation, collider searches, and cosmological constraints including dark matter and implications for baryogenesis and inflation.

show abstract

“…The DM velocity going into these collisions is determined from the local DM velocity distribution. The velocity at distances far from the Sun is approximately given by a Boltzmann distribution [59] f (u) = 6 π u v Gv exp − 3 2…”

mentioning

confidence: 99%

Detecting Boosted Dark Matter from the Sun with Large Volume Neutrino Detectors

Berger

Cui

Zhao

2015

View full text Add to dashboard Cite

We study novel scenarios where thermal dark matter (DM) can be efficiently captured in the Sun and annihilate into boosted dark matter. In models with semi-annihilating DM, where DM has a non-minimal stabilization symmetry, or in models with a multi-component DM sector, annihilations of DM can give rise to stable dark sector particles with moderate Lorentz boosts. We investigate both of these possibilities, presenting concrete models as proofs of concept. Both scenarios can yield viable thermal relic DM with masses O(1)-O(100) GeV. Taking advantage of the energetic proton recoils that arise when the boosted DM scatters off matter, we propose a detection strategy which uses large volume terrestrial detectors, such as those designed to detect neutrinos or proton decays. In particular, we propose a search for proton tracks pointing towards the Sun. We focus on signals at Cherenkov-radiation-based detectors such as Super-Kamiokande (SK) and its upgrade Hyper-Kamiokande (HK). We find that with spin-dependent scattering as the dominant DM-nucleus interaction at low energies, boosted DM can leave detectable signals at SK or HK, with sensitivity comparable to DM direct detection experiments while being consistent with current constraints. Our study provides a new search path for DM sectors with non-minimal structure. Contents

show abstract

Resonant enhancements in weakly interacting massive particle capture by the earth

Cited by 583 publications

References 9 publications

Signatures of large composite Dark Matter states

Signatures of large composite Dark Matter states

The soft supersymmetry-breaking Lagrangian: theory and applications

Detecting Boosted Dark Matter from the Sun with Large Volume Neutrino Detectors

Contact Info

Product

Resources

About