Revised constraints and Belle II sensitivity for visible and invisible axion-like particles
Abstract Light pseudoscalars interacting pre-dominantly with Standard Model gauge bosons (so-called axion-like particles or ALPs) occur frequently in extensions of the Standard Model. In this work we review and update existing constraints on ALPs in the keV to GeV mass region from colliders, beam du...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP12(2017)094 |
| _version_ | 1819041127423016960 |
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| author | Matthew J. Dolan Torben Ferber Christopher Hearty Felix Kahlhoefer Kai Schmidt-Hoberg |
| author_facet | Matthew J. Dolan Torben Ferber Christopher Hearty Felix Kahlhoefer Kai Schmidt-Hoberg |
| author_sort | Matthew J. Dolan |
| collection | DOAJ |
| description | Abstract Light pseudoscalars interacting pre-dominantly with Standard Model gauge bosons (so-called axion-like particles or ALPs) occur frequently in extensions of the Standard Model. In this work we review and update existing constraints on ALPs in the keV to GeV mass region from colliders, beam dump experiments and astrophysics. We furthermore provide a detailed calculation of the expected sensitivity of Belle II, which can search for visibly and invisibly decaying ALPs, as well as long-lived ALPs. The Belle II sensitivity is found to be substantially better than previously estimated, covering wide ranges of relevant parameter space. In particular, Belle II can explore an interesting class of dark matter models, in which ALPs mediate the interactions between the Standard Model and dark matter. In these models, the relic abundance can be set via resonant freeze-out, leading to a highly predictive scenario consistent with all existing constraints but testable with single-photon searches at Belle II in the near future. |
| first_indexed | 2024-12-21T09:20:03Z |
| format | Article |
| id | doaj.art-d09ec9fcfb004d61ac188c08b9cdbac7 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T09:20:03Z |
| publishDate | 2017-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-d09ec9fcfb004d61ac188c08b9cdbac72022-12-21T19:09:03ZengSpringerOpenJournal of High Energy Physics1029-84792017-12-0120171212910.1007/JHEP12(2017)094Revised constraints and Belle II sensitivity for visible and invisible axion-like particlesMatthew J. Dolan0Torben Ferber1Christopher Hearty2Felix Kahlhoefer3Kai Schmidt-Hoberg4ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, University of MelbourneDepartment of Physics and Astronomy, University of British ColumbiaDepartment of Physics and Astronomy, University of British ColumbiaDESYDESYAbstract Light pseudoscalars interacting pre-dominantly with Standard Model gauge bosons (so-called axion-like particles or ALPs) occur frequently in extensions of the Standard Model. In this work we review and update existing constraints on ALPs in the keV to GeV mass region from colliders, beam dump experiments and astrophysics. We furthermore provide a detailed calculation of the expected sensitivity of Belle II, which can search for visibly and invisibly decaying ALPs, as well as long-lived ALPs. The Belle II sensitivity is found to be substantially better than previously estimated, covering wide ranges of relevant parameter space. In particular, Belle II can explore an interesting class of dark matter models, in which ALPs mediate the interactions between the Standard Model and dark matter. In these models, the relic abundance can be set via resonant freeze-out, leading to a highly predictive scenario consistent with all existing constraints but testable with single-photon searches at Belle II in the near future.http://link.springer.com/article/10.1007/JHEP12(2017)094Beyond Standard ModelCosmology of Theories beyond the SM |
| spellingShingle | Matthew J. Dolan Torben Ferber Christopher Hearty Felix Kahlhoefer Kai Schmidt-Hoberg Revised constraints and Belle II sensitivity for visible and invisible axion-like particles Journal of High Energy Physics Beyond Standard Model Cosmology of Theories beyond the SM |
| title | Revised constraints and Belle II sensitivity for visible and invisible axion-like particles |
| title_full | Revised constraints and Belle II sensitivity for visible and invisible axion-like particles |
| title_fullStr | Revised constraints and Belle II sensitivity for visible and invisible axion-like particles |
| title_full_unstemmed | Revised constraints and Belle II sensitivity for visible and invisible axion-like particles |
| title_short | Revised constraints and Belle II sensitivity for visible and invisible axion-like particles |
| title_sort | revised constraints and belle ii sensitivity for visible and invisible axion like particles |
| topic | Beyond Standard Model Cosmology of Theories beyond the SM |
| url | http://link.springer.com/article/10.1007/JHEP12(2017)094 |
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