Invisible and displaced dark matter signatures at Belle II
Many dark matter models generically predict invisible and displaced signatures at Belle II, but even striking events may be missed by the currently implemented search programme because of inefficient trigger algorithms. Of particular interest are final states with a single photon accompanied by miss...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Springer Verlag
2020
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| _version_ | 1826281625964511232 |
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| author | Duerr, M Ferber, T Hearty, C Kahlhoefer, F Schmidt-Hoberg, K Tunney, P |
| author_facet | Duerr, M Ferber, T Hearty, C Kahlhoefer, F Schmidt-Hoberg, K Tunney, P |
| author_sort | Duerr, M |
| collection | OXFORD |
| description | Many dark matter models generically predict invisible and displaced signatures at Belle II, but even striking events may be missed by the currently implemented search programme because of inefficient trigger algorithms. Of particular interest are final states with a single photon accompanied by missing energy and a displaced pair of electrons, muons, or hadrons. We argue that a displaced vertex trigger will be essential to achieve optimal sensitivity at Belle II. To illustrate this point, we study a simple but well-motivated model of thermal inelastic dark matter in which this signature naturally occurs and show that otherwise inaccessible regions of parameter space can be tested with such a search. We also evaluate the sensitivity of single-photon searches at BaBar and Belle II to this model and provide detailed calculations of the relic density target. |
| first_indexed | 2024-03-07T00:31:37Z |
| format | Journal article |
| id | oxford-uuid:7ffe2de5-a3f2-4973-a359-49184fb25fc1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:31:37Z |
| publishDate | 2020 |
| publisher | Springer Verlag |
| record_format | dspace |
| spelling | oxford-uuid:7ffe2de5-a3f2-4973-a359-49184fb25fc12022-03-26T21:20:29ZInvisible and displaced dark matter signatures at Belle IIJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7ffe2de5-a3f2-4973-a359-49184fb25fc1EnglishSymplectic ElementsSpringer Verlag2020Duerr, MFerber, THearty, CKahlhoefer, FSchmidt-Hoberg, KTunney, PMany dark matter models generically predict invisible and displaced signatures at Belle II, but even striking events may be missed by the currently implemented search programme because of inefficient trigger algorithms. Of particular interest are final states with a single photon accompanied by missing energy and a displaced pair of electrons, muons, or hadrons. We argue that a displaced vertex trigger will be essential to achieve optimal sensitivity at Belle II. To illustrate this point, we study a simple but well-motivated model of thermal inelastic dark matter in which this signature naturally occurs and show that otherwise inaccessible regions of parameter space can be tested with such a search. We also evaluate the sensitivity of single-photon searches at BaBar and Belle II to this model and provide detailed calculations of the relic density target. |
| spellingShingle | Duerr, M Ferber, T Hearty, C Kahlhoefer, F Schmidt-Hoberg, K Tunney, P Invisible and displaced dark matter signatures at Belle II |
| title | Invisible and displaced dark matter signatures at Belle II |
| title_full | Invisible and displaced dark matter signatures at Belle II |
| title_fullStr | Invisible and displaced dark matter signatures at Belle II |
| title_full_unstemmed | Invisible and displaced dark matter signatures at Belle II |
| title_short | Invisible and displaced dark matter signatures at Belle II |
| title_sort | invisible and displaced dark matter signatures at belle ii |
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