Magnetic Fluffy Dark Matter

Abstract

We explore extensions of inelastic Dark Matter and Magnetic inelastic Dark Matter where the WIMP can scatter to a tower of heavier states. We assume a WIMP mass $m_{\chi }\sim \mathcal{O}(1-100)$ GeV and a constant splitting between successive states $\delta \sim \mathcal{O}(1-100)$ keV. For the spin-independent scattering scenario we find that the direct experiments CDMS and XENON strongly constrain most of the DAMA/LIBRA preferred parameter space, while for WIMPs that interact with nuclei via their magnetic moment a region of parameter space corresponding to $m_{\chi }\sim 11$ GeV and $\delta <15$ keV is allowed by all the present direct detection constraints.

16 pages, 6 figures, added comments about magnetic moment form factor to Sec 3.1.2 and results to Sec 3.2.2, final version to be published in JHEP

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• Dark Nuclei I: Cosmology and Indirect Detection
• SIMPle Dark Matter: Self-Interactions and keV Lines
• Generalized Halo Independent Comparison of Direct Dark Matter Detection Data
• A Model Independent Approach to Inelastic Dark Matter Scattering
• The Inelastic Frontier: Discovering Dark Matter at High Recoil Energy
• Direct detection of Light Anapole and Magnetic Dipole DM
• Dark Confinement and Chiral Phase Transitions: Gravitational Waves vs Matter Representations
• Direct Detection of Dynamical Dark Matter
• Casting a Wide Signal Net with Future Direct Dark Matter Detection Experiments
• Finite-size dark matter and its effect on small-scale structure
• Light mediators in dark matter direct detections
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• Light weakly interacting massive particles
• Towards resolving strongly-interacting dark sectors at colliders
• Prospects for detection of target-dependent annual modulation in direct dark matter searches
• Continuum-Mediated Dark Matter-Baryon Scattering
• Target dependence of the annual modulation in direct dark matter searches
• Self-Destructing Dark Matter
• Halo-independent comparison of direct dark matter detection data: a review
• Optical dispersion of composite particles consisting of millicharged constituents