Dipole moment dark matter at the LHC

Barger, V.; Keung, Wai-Yee; Marfatia, Danny; Tseng, Po-Yan

doi:10.1016/j.physletb.2012.09.036

Cited by 44 publications

(40 citation statements)

References 30 publications

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“…For Dirac neutrinos in BSM scenarios, naturalness considerations on the coeffecients of effective operators imply, µ ν 10 −14 µ B [31], far below present experimental sensitivity. Finally for Majorana neutrinos reactor data as measured by the GEMMA spectrometer constrains, µ ν < 3.2 × 10 −11 µ B , [32] while the 7 TeV LHC sensitivity is around ∼ 3 × 10 −5 µ B [33], far above what is allowed by reactor and solar data [34]. We conclude that neutrino magnetic moments will not produce sizeable missing energy at the LHC.…”

Section: Introductionmentioning

confidence: 77%

New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

2016

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Missing energy signals such as monojets are a possible signature of Dark Matter (DM) at colliders. However, neutrino interactions beyond the Standard Model may also produce missing energy signals. In order to conclude that new "missing particles" are observed the hypothesis of BSM neutrino interactions must be rejected. In this paper, we first derive new limits on these Non-Standard neutrino Interactions (NSIs) from LHC monojet data. For heavy NSI mediators, these limits are much stronger than those coming from traditional low-energy ν scattering or ν oscillation experiments for some flavor structures. Monojet data alone can be used to infer the mass of the "missing particle" from the shape of the missing energy distribution. In particular, 13 TeV LHC data will have sensitivity to DM masses greater than ∼ 1 TeV. In addition to the monojet channel, NSI can be probed in multi-lepton searches which we find to yield stronger limits at heavy mediator masses. The sensitivity offered by these multi-lepton channels provide a method to reject or confirm the DM hypothesis in missing energy searches.

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Section: Introductionmentioning

confidence: 77%

New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

2016

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“…This interaction is well-motivated and arises in a wide variety of DM models [6,40,[70][71][72][73][74][75][76].…”

Section: B γ/Z-mediated Dipole Interactionmentioning

confidence: 99%

Discovering inelastic thermal relic dark matter at colliders

2016

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Dark Matter particles with inelastic interactions are ubiquitous in extensions of the StandardModel, yet remain challenging to fully probe with existing strategies. We propose a series of powerful searches at hadron and lepton colliders that are sensitive to inelastic dark matter dynamics. In representative models featuring either a massive dark photon or a magnetic dipole interaction, we find that the LHC and BaBar could offer strong sensitivity to the thermal-relic dark matter parameter space for dark matter masses between ∼ 100 MeV-100 GeV and fractional mass-splittings above the percent level; future searches at Belle II with a dedicated monophoton trigger could also offer sensitivity to thermal-relic scenarios with masses below a few GeV. Thermal scenarios with either larger masses or splittings are largely ruled out; lower masses remain viable yet may be accessible with other search strategies.

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“…The processes that lead to constraints are mono-photon production (from initial or final state) plus missing energy due to the pair of DM particles in e + e − collisions at LEP, or mono-jet production plus missing energy in proton-antiproton collision in Tevatron, or proton-proton collisions at LHC. In the case of magnetic DM these constraints have been studied in [48,49] where it is found that the upper bound on λ χ is safely above the range of values of λ χ relevant for the direct search experiments (for the range of m χ ∼ 10 GeV).…”

Section: Collider and Other Astrophysical Constraintsmentioning

confidence: 99%

“…We refer to [23,[38][39][40][41][42][43][44][45][46][47][48][49][50] for a limited sample of the earlier literature.…”

Section: Introductionmentioning

confidence: 99%

Light magnetic dark matter in direct detection searches

Nobile

Kouvaris

Panci

et al. 2012

J. Cosmol. Astropart. Phys.

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We study a fermionic Dark Matter particle carrying magnetic dipole moment and analyze its impact on direct detection experiments. In particular we show that it can accommodate the DAMA, CoGeNT and CRESST experimental results. Assuming conservative bounds, this candidate is shown not to be ruled out by the CDMS, XENON and PICASSO experiments. We offer an analytic understanding of how the long-range interaction modifies the experimental allowed regions, in the cross section versus Dark Matter mass parameter space, with respect to the typically assumed contact interaction. Finally, in the context of a symmetric Dark Matter sector, we determine the associated thermal relic density, and further provide relevant constraints imposed by indirect searches and colliders.

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Dipole moment dark matter at the LHC

Cited by 44 publications

References 30 publications

New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

Discovering inelastic thermal relic dark matter at colliders

Light magnetic dark matter in direct detection searches

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