Hidden sector dark matter explains the DAMA, CoGeNT, CRESST-II and CDMS/Si experiments

Foot, R.

doi:10.1103/physrevd.88.025032

Cited by 14 publications

(8 citation statements)

References 83 publications

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“…Supersymmetric theories naturally predict the existence of WIMPs with masses at the electroweak scale, but with no evidence of such particles at the LHC [5,6], direct-detection DM experiments have begun to consider low-mass alternatives [7][8][9][10]. Theories that predict DM particles with masses 10 GeV/c 2 include, but are not limited to, asymmetric DM, which relates the DM problem to the baryon asymmetry of the universe [11,12], and hidden sector scenarios in which DM couples to Standard Model particles through new force mediators like the dark photon [13,14].…”

Section: Introductionmentioning

confidence: 99%

Search for low-mass dark matter with CDMSlite using a profile likelihood fit

Agnese¹,

Aralis²,

Aramaki³

et al. 2019

Phys. Rev. D

127

132

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The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) searches for interactions between dark matter particles and germanium nuclei in cryogenic detectors. The experiment has achieved a low energy threshold with improved sensitivity to low-mass (<10 GeV/c 2) dark matter particles. We present an analysis of the final CDMSlite data set, taken with a different detector than was used for the two previous CDMSlite data sets. This analysis includes a data "salting" method to protect against bias, improved noise discrimination, background modeling, and the use of profile likelihood methods to search for a dark matter signal in the presence of backgrounds. We achieve an energy threshold of 70 eV and significantly improve the sensitivity for dark matter particles with masses between 2.5 and 10 GeV/c 2 compared to previous analyses. We set an upper limit on the dark matter-nucleon scattering cross section in germanium of 5.4×10 −42 cm 2 at 5 GeV/c 2 , a factor of ∼2.5 improvement over the previous CDMSlite result.

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Section: Introductionmentioning

confidence: 99%

Search for low-mass dark matter with CDMSlite using a profile likelihood fit

Agnese¹,

Aralis²,

Aramaki³

et al. 2019

Phys. Rev. D

127

132

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“…Inside haloes, the inelastic scatterings of either symmetric or asymmetric DM with long-range interactions can produce radiative signals [27][28][29][30][31][32][33][34][35], which can potentially account for anomalous excesses observed in the radiation backgrounds [27][28][29][30][31][32]. Moreover, long-range DM-nucleon scattering implies a different interpretation of the direct-detection data than the commonly assumed short-range scattering [36][37][38][39]. Notably, the long-range character of DM interactions is relevant not only for theories involving hidden sectors; even the electroweak interactions of the Standard Model manifest as long-range if DM is heavier than a few TeV [40][41][42].…”

mentioning

confidence: 99%

Dark-matter bound states from Feynman diagrams

Petraki

Postma

Wiechers

2015

J. High Energ. Phys.

103

228

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If dark matter couples directly to a light force mediator, then it may form bound states in the early universe and in the non-relativistic environment of haloes today. In this work, we establish a field-theoretic framework for the computation of bound-state formation cross-sections, de-excitation and decay rates, in theories with long-range interactions. Using this formalism, we carry out specific computations for scalar particles interacting either via a light scalar or vector mediator. At low relative velocities of the interacting particles, the formation of bound states is enhanced by the Sommerfeld effect. For particle-antiparticle pairs, we show that bound-state formation can be faster than annihilation into radiation in the regime where the Sommerfeld effect is important. The field-theoretic formalism outlined here can be generalised to compute bound-state formation cross-sections in a variety of theories, including theories featuring non-Abelian (albeit non-confining) interactions, such as the electroweak interactions.Comment: 36 pages + appendices + references, 9 figures, 1 table; v2: published versio

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“…Proposals of efficient collection of dark matter rely on strong interactions of dark matter. If the hidden sector is multi-component and self-interacting, the distribution function is still Maxwellian but the velocity dispersion depends on the mass spectrum of the hidden sector and could be smaller than v esc [36]. For example, consider a two-component dark matter model with a large mass hi-erarchy m a m b .…”

Section: Dark Matter In the Earthmentioning

confidence: 99%

Neutrino constraints on long-lived heavy dark sector particle decays in the Earth

Reno¹,

Anchordoqui²,

Bhattacharya³

et al. 2021

Preprint

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Recent theoretical work has explored dark matter accumulation in the Earth and its drift towards the center of the Earth that, for the current age of the Earth, does not necessarily result in a concentration of dark matter (χ) in the Earth's core. We consider a scenario of long-lived (τ χ ∼ 10 28 s), super heavy (m χ = 10 7 − 10 10 GeV) dark matter that decays via χ → ν τ H or χ → ν µ H. We show that an IceCube-like detector over 10 years can constrain a dark matter density that mirrors the Earth's density or has a uniform density with density fraction ρ combined with the partial decay width B χ→ντH Γ χ in the range of ( ρ /10 −10 )B χ→ντ Γ χ < ∼ 3 × 10 −29 − 3 × 10 −28 s −1 . For χ → ν µ H, m χ = 10 8 − 10 10 GeV and E µ > 10 7 GeV, the range of constraints is ( ρ /10 −10 )B χ→νµ Γ χ < ∼ 6 × 10 −29 − 1.4 × 10 −27 s −1 .

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Hidden sector dark matter explains the DAMA, CoGeNT, CRESST-II and CDMS/Si experiments

Cited by 14 publications

References 83 publications

Search for low-mass dark matter with CDMSlite using a profile likelihood fit

Search for low-mass dark matter with CDMSlite using a profile likelihood fit

Dark-matter bound states from Feynman diagrams

Neutrino constraints on long-lived heavy dark sector particle decays in the Earth

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