Isospin-violating dark matter
By Jonathan L. Feng, J. Kumar, D. Marfatia, D. Sanford. 2011
248 citations recorded by the source corpus.
Abstract Searches for dark matter scattering off nuclei are typically compared assuming that the dark matterʼs spin-independent couplings are identical for protons and neutrons. This assumption is neither innocuous nor well motivated. We consider isospin-violating dark matter (IVDM) with one extra parameter, the ratio of neutron to proton couplings, and include the isotope distribution for each detector. For a single choice of the coupling ratio, the DAMA and CoGeNT signals are consistent with each other and with current XENON constraints, and they unambiguously predict near future signals at XENON and CRESST. We provide a quark-level realization of IVDM as WIMPless dark matter that is consistent with all collider and low-energy bounds.
Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/11a00e485d443ca1989e11830a5f7712ce3764bd
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In Atomic and Molecular Physics, and Optics
In Nuclear and High Energy Physics
Citations in the corpus
- Lectures on Dark Matter Physics (2016, background): “However, isospin-dependent scenarios have also been considered in the literature [77].”
- Galactic Searches for Dark Matter (2012, background): “While there have been models that have been put forward that attempt to reconcile these results (Feng et al., 2011), it is not clear that these satisfy all of the most recent constraints, even taking to account uncertainties in the dark matter local density and velocity distribution (Fox et al.,…”
- Letter of Intent: The Precision IceCube Next Generation Upgrade (PINGU) (2014, background): “WIMP scenarios motivated by DAMA’s annual modulation signal [81] and isospin-violating scenarios [82] would be testable.”
- Colloquium: Annual modulation of dark matter (2013, background): “Although typically fn ’ fp, models can be constructed that violate this condition [e.g., isospin-violating dark matter (Feng et al., 2011)].”