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Leptophilic Dark Matter in Direct Detection Experiments and in the Sun
High Energy Physics - Phenomenology · Submitted 5 Nov 2010
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim However, we find that the signals in DAMA and/or CoGeNT cannot be explained by invoking leptophilic DM because the predicted and observed energy spectra do not match, and because of neutrino bounds from the Sun.
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The abstract, sentence by sentence
Dark matter interacting predominantly with leptons instead of nuclear matter has received a lot of interest recently. In this talk, we investigate the signals expected from such 'leptophilic Dark Matter' in direct detection experiments and in experiments looking for Dark Matter annihilation into neutrinos in the Sun. In a model-independent framework, we calculate the expected interaction rates for different scattering processes, including elastic and inelastic scattering off atomic electron shells, as well as loop-induced scattering off atomic nuclei. In those cases where the last effect dominates, leptophilic Dark Matter cannot be distinguished from conventional WIMPs. On the other hand, if inelastic scattering off the electron shell dominates, the expected event spectrum in direct detection experiments is different and would provide a distinct signal. However, we find that the signals in DAMA and/or CoGeNT cannot be explained by invoking leptophilic DM because the predicted and observed energy spectra do not match, and because of neutrino bounds from the Sun.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Dark matter interacting predominantly with leptons instead of nuclear matter has received a lot of interest recently. | background 1.00 | 0.03 | 0.02 | asserted 0.98 |
| s1 | In this talk, we investigate the signals expected from such 'leptophilic Dark Matter' in direct detection experiments and in experiments looking for Dark Matter annihilation into neutrinos in the Sun. | contribution 1.00 | 0.60 | 0.03 | asserted 0.79 |
| s2 | In a model-independent framework, we calculate the expected interaction rates for different scattering processes, including elastic and inelastic scattering off atomic electron shells, as well as loop-induced scattering off atomic nuclei. | method 0.86 | 0.94 | 0.03 | asserted 1.00 |
| s3 | In those cases where the last effect dominates, leptophilic Dark Matter cannot be distinguished from conventional WIMPs. | interpretation 0.65 | 0.54 | 0.05 | asserted 0.87 |
| s4 | On the other hand, if inelastic scattering off the electron shell dominates, the expected event spectrum in direct detection experiments is different and would provide a distinct signal. | interpretation 0.55 | 0.54 | 0.07 | asserted 0.58 |
| s5 | However, we find that the signals in DAMA and/or CoGeNT cannot be explained by invoking leptophilic DM because the predicted and observed energy spectra do not match, and because of neutrino bounds from the Sun. | result 0.99 | 0.94 | 0.85 | asserted 1.00 |
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The paper
Original abstract
Dark matter interacting predominantly with leptons instead of nuclear matter has received a lot of interest recently. In this talk, we investigate the signals expected from such 'leptophilic Dark Matter' in direct detection experiments and in experiments looking for Dark Matter annihilation into neutrinos in the Sun. In a model-independent framework, we calculate the expected interaction rates for different scattering processes, including elastic and inelastic scattering off atomic electron shells, as well as loop-induced scattering off atomic nuclei. In those cases where the last effect dominates, leptophilic Dark Matter cannot be distinguished from conventional WIMPs. On the other hand, if inelastic scattering off the electron shell dominates, the expected event spectrum in direct detection experiments is different and would provide a distinct signal. However, we find that the signals in DAMA and/or CoGeNT cannot be explained by invoking leptophilic DM because the predicted and observed energy spectra do not match, and because of neutrino bounds from the Sun.
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References
How the literature uses it
7 arXiv papers cite this in 9 sentences
Papers citing it · 8 sentences without a confident label
Cites it as background 1 paper
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The astrophysical and particle physics implications of this finding are discussed in Refs. [ref] .
The Galactic Center Region Gamma Ray Excess from A Supersymmetric Leptophilic Higgs Model · Introduction · 0.81
What it cites · 14 sentences without a confident label
Uses data or values from 5 papers
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[ref], we show constraints on the WIMP mass and the WIMP–free electron cross section $σ_e^0$ derived from CDMS [ref] , XENON-10 [ref] , CoGeNT [ref] , and DAMA [ref] data.
First Results from the XENON10 Dark Matter Experiment at the Gran Sasso National Laboratory · Exclusion limits on leptophilic Dark Matter from direct detection experiments · 0.98
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[ref], we show constraints on the WIMP mass and the WIMP–free electron cross section $σ_e^0$ derived from CDMS [ref] , XENON-10 [ref] , CoGeNT [ref] , and DAMA [ref] data.
A Search for WIMPs with the First Five-Tower Data from CDMS · Exclusion limits on leptophilic Dark Matter from direct detection experiments · 0.98
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[ref], we show constraints on the WIMP mass and the WIMP–free electron cross section $σ_e^0$ derived from CDMS [ref] , XENON-10 [ref] , CoGeNT [ref] , and DAMA [ref] data.
First results from DAMA/LIBRA and the combined results with DAMA/NaI · Exclusion limits on leptophilic Dark Matter from direct detection experiments · 0.98
Cites as support 1 paper
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However, it turns out that elastic WIMP-atom scattering is always subdominant compared to other processes [ref] , so we will not consider it further here.
DAMA/LIBRA and leptonically interacting Dark Matter · Leptophilic Dark Matter · 0.98
Cites as background 14 papers
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The possibility that Dark Matter interacts predominantly with leptons has recently received a lot of attention [ref] , in particular in the context of cosmic ray anomalies [ref] which could be due to Dark Matter annihilation.
Observation of an anomalous positron abundance in the cosmic radiation · Introduction · 0.99
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The possibility that Dark Matter interacts predominantly with leptons has recently received a lot of attention [ref] , in particular in the context of cosmic ray anomalies [ref] which could be due to Dark Matter annihilation.
Leptophilic Dark Matter · Introduction · 0.99
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The possibility that Dark Matter interacts predominantly with leptons has recently received a lot of attention [ref] , in particular in the context of cosmic ray anomalies [ref] which could be due to Dark Matter annihilation.
PAMELA/ATIC anomaly from the meta-stable extra dark matter component and the leptophilic Yukawa interaction · Introduction · 0.99
Discussion
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