On the DAMA and CoGeNT Modulations
DAMA observes an annual modulation in their event rate, as might be expected from dark matter scatterings, while CoGeNT has reported evidence for a similar modulation. The simplest interpretation of these findings in terms of dark matter-nucleus scatterings is excluded by other direct detection expe...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Published: |
2011
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| _version_ | 1797071114603593728 |
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| author | Frandsen, M Kahlhoefer, F March-Russell, J McCabe, C McCullough, M Schmidt-Hoberg, K |
| author_facet | Frandsen, M Kahlhoefer, F March-Russell, J McCabe, C McCullough, M Schmidt-Hoberg, K |
| author_sort | Frandsen, M |
| collection | OXFORD |
| description | DAMA observes an annual modulation in their event rate, as might be expected from dark matter scatterings, while CoGeNT has reported evidence for a similar modulation. The simplest interpretation of these findings in terms of dark matter-nucleus scatterings is excluded by other direct detection experiments. We consider the robustness of these exclusions with respect to assumptions regarding the scattering and find that isospin-violating inelastic dark matter helps alleviate this tension and allows marginal compatibility between experiments. Isospin-violation can significantly weaken the XENON constraints, while inelasticity enhances the annual modulation fraction of the signal, bringing the CoGeNT and CDMS results into better agreement. |
| first_indexed | 2024-03-06T22:48:35Z |
| format | Journal article |
| id | oxford-uuid:5e0a481b-2921-4908-bb50-841051932076 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:48:35Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:5e0a481b-2921-4908-bb50-8410519320762022-03-26T17:38:01ZOn the DAMA and CoGeNT ModulationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5e0a481b-2921-4908-bb50-841051932076Symplectic Elements at Oxford2011Frandsen, MKahlhoefer, FMarch-Russell, JMcCabe, CMcCullough, MSchmidt-Hoberg, KDAMA observes an annual modulation in their event rate, as might be expected from dark matter scatterings, while CoGeNT has reported evidence for a similar modulation. The simplest interpretation of these findings in terms of dark matter-nucleus scatterings is excluded by other direct detection experiments. We consider the robustness of these exclusions with respect to assumptions regarding the scattering and find that isospin-violating inelastic dark matter helps alleviate this tension and allows marginal compatibility between experiments. Isospin-violation can significantly weaken the XENON constraints, while inelasticity enhances the annual modulation fraction of the signal, bringing the CoGeNT and CDMS results into better agreement. |
| spellingShingle | Frandsen, M Kahlhoefer, F March-Russell, J McCabe, C McCullough, M Schmidt-Hoberg, K On the DAMA and CoGeNT Modulations |
| title | On the DAMA and CoGeNT Modulations |
| title_full | On the DAMA and CoGeNT Modulations |
| title_fullStr | On the DAMA and CoGeNT Modulations |
| title_full_unstemmed | On the DAMA and CoGeNT Modulations |
| title_short | On the DAMA and CoGeNT Modulations |
| title_sort | on the dama and cogent modulations |
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