Theoretical uncertainties in the calculation of supersymmetric dark matter observables
Abstract We estimate the current theoretical uncertainty in supersymmetric dark matter predictions by comparing several state-of-the-art calculations within the minimal supersymmetric standard model (MSSM). We consider standard neutralino dark matter scenarios — coannihilation, well-tempering, pseud...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP05(2018)113 |
| _version_ | 1818260287985287168 |
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| author | Paul Bergeron Pearl Sandick Kuver Sinha |
| author_facet | Paul Bergeron Pearl Sandick Kuver Sinha |
| author_sort | Paul Bergeron |
| collection | DOAJ |
| description | Abstract We estimate the current theoretical uncertainty in supersymmetric dark matter predictions by comparing several state-of-the-art calculations within the minimal supersymmetric standard model (MSSM). We consider standard neutralino dark matter scenarios — coannihilation, well-tempering, pseudoscalar resonance — and benchmark models both in the pMSSM framework and in frameworks with Grand Unified Theory (GUT)-scale unification of supersymmetric mass parameters. The pipelines we consider are constructed from the publicly available software packages SOFTSUSY, SPheno, FeynHiggs, SusyHD, micrOMEGAs, and DarkSUSY. We find that the theoretical uncertainty in the relic density as calculated by different pipelines, in general, far exceeds the statistical errors reported by the Planck collaboration. In GUT models, in particular, the relative discrepancies in the results reported by different pipelines can be as much as a few orders of magnitude. We find that these discrepancies are especially pronounced for cases where the dark matter physics relies critically on calculations related to electroweak symmetry breaking, which we investigate in detail, and for coannihilation models, where there is heightened sensitivity to the sparticle spectrum. The dark matter annihilation cross section today and the scattering cross section with nuclei also suffer appreciable theoretical uncertainties, which, as experiments reach the relevant sensitivities, could lead to uncertainty in conclusions regarding the viability or exclusion of particular models. |
| first_indexed | 2024-12-12T18:28:57Z |
| format | Article |
| id | doaj.art-3523192dbe5f487cb81b02614dd2f77e |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-12T18:28:57Z |
| publishDate | 2018-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-3523192dbe5f487cb81b02614dd2f77e2022-12-22T00:15:57ZengSpringerOpenJournal of High Energy Physics1029-84792018-05-012018515910.1007/JHEP05(2018)113Theoretical uncertainties in the calculation of supersymmetric dark matter observablesPaul Bergeron0Pearl Sandick1Kuver Sinha2Department of Physics & Astronomy, University of UtahDepartment of Physics & Astronomy, University of UtahDept. of Physics and Astronomy, University of OklahomaAbstract We estimate the current theoretical uncertainty in supersymmetric dark matter predictions by comparing several state-of-the-art calculations within the minimal supersymmetric standard model (MSSM). We consider standard neutralino dark matter scenarios — coannihilation, well-tempering, pseudoscalar resonance — and benchmark models both in the pMSSM framework and in frameworks with Grand Unified Theory (GUT)-scale unification of supersymmetric mass parameters. The pipelines we consider are constructed from the publicly available software packages SOFTSUSY, SPheno, FeynHiggs, SusyHD, micrOMEGAs, and DarkSUSY. We find that the theoretical uncertainty in the relic density as calculated by different pipelines, in general, far exceeds the statistical errors reported by the Planck collaboration. In GUT models, in particular, the relative discrepancies in the results reported by different pipelines can be as much as a few orders of magnitude. We find that these discrepancies are especially pronounced for cases where the dark matter physics relies critically on calculations related to electroweak symmetry breaking, which we investigate in detail, and for coannihilation models, where there is heightened sensitivity to the sparticle spectrum. The dark matter annihilation cross section today and the scattering cross section with nuclei also suffer appreciable theoretical uncertainties, which, as experiments reach the relevant sensitivities, could lead to uncertainty in conclusions regarding the viability or exclusion of particular models.http://link.springer.com/article/10.1007/JHEP05(2018)113Supersymmetry Phenomenology |
| spellingShingle | Paul Bergeron Pearl Sandick Kuver Sinha Theoretical uncertainties in the calculation of supersymmetric dark matter observables Journal of High Energy Physics Supersymmetry Phenomenology |
| title | Theoretical uncertainties in the calculation of supersymmetric dark matter observables |
| title_full | Theoretical uncertainties in the calculation of supersymmetric dark matter observables |
| title_fullStr | Theoretical uncertainties in the calculation of supersymmetric dark matter observables |
| title_full_unstemmed | Theoretical uncertainties in the calculation of supersymmetric dark matter observables |
| title_short | Theoretical uncertainties in the calculation of supersymmetric dark matter observables |
| title_sort | theoretical uncertainties in the calculation of supersymmetric dark matter observables |
| topic | Supersymmetry Phenomenology |
| url | http://link.springer.com/article/10.1007/JHEP05(2018)113 |
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