Disformal dark energy at colliders
Disformally coupled, light scalar fields arise in many of the theories of dark energy and modified gravity that attempt to explain the accelerated expansion of the Universe. They have proved difficult to constrain with precision tests of gravity because they do not give rise to fifth forces around s...
| Main Authors: | , , |
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| Format: | Article |
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American Physical Society
2015
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| Online Access: | https://eprints.nottingham.ac.uk/42094/ |
| _version_ | 1848796416949878784 |
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| author | Brax, Philippe Burrage, Clare Englert, Christoph |
| author_facet | Brax, Philippe Burrage, Clare Englert, Christoph |
| author_sort | Brax, Philippe |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Disformally coupled, light scalar fields arise in many of the theories of dark energy and modified gravity that attempt to explain the accelerated expansion of the Universe. They have proved difficult to constrain with precision tests of gravity because they do not give rise to fifth forces around static nonrelativistic sources. However, because the scalar field couples derivatively to standard model matter, measurements at high-energy particle colliders offer an effective way to constrain and potentially detect a disformally coupled scalar field. Here we derive new constraints on the strength of the disformal coupling from LHC run 1 data and provide a forecast for the improvement of these constraints from run 2. We additionally comment on the running of disformal and standard model couplings in this scenario under the renormalization group flow. |
| first_indexed | 2025-11-14T19:47:39Z |
| format | Article |
| id | nottingham-42094 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:47:39Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-420942020-05-04T17:14:48Z https://eprints.nottingham.ac.uk/42094/ Disformal dark energy at colliders Brax, Philippe Burrage, Clare Englert, Christoph Disformally coupled, light scalar fields arise in many of the theories of dark energy and modified gravity that attempt to explain the accelerated expansion of the Universe. They have proved difficult to constrain with precision tests of gravity because they do not give rise to fifth forces around static nonrelativistic sources. However, because the scalar field couples derivatively to standard model matter, measurements at high-energy particle colliders offer an effective way to constrain and potentially detect a disformally coupled scalar field. Here we derive new constraints on the strength of the disformal coupling from LHC run 1 data and provide a forecast for the improvement of these constraints from run 2. We additionally comment on the running of disformal and standard model couplings in this scenario under the renormalization group flow. American Physical Society 2015-08-20 Article PeerReviewed Brax, Philippe, Burrage, Clare and Englert, Christoph (2015) Disformal dark energy at colliders. Physical Review D, D92 (4). 044036/1-044036/11. ISSN 2470-0029 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.044036 doi:10.1103/PhysRevD.92.044036 doi:10.1103/PhysRevD.92.044036 |
| spellingShingle | Brax, Philippe Burrage, Clare Englert, Christoph Disformal dark energy at colliders |
| title | Disformal dark energy at colliders |
| title_full | Disformal dark energy at colliders |
| title_fullStr | Disformal dark energy at colliders |
| title_full_unstemmed | Disformal dark energy at colliders |
| title_short | Disformal dark energy at colliders |
| title_sort | disformal dark energy at colliders |
| url | https://eprints.nottingham.ac.uk/42094/ https://eprints.nottingham.ac.uk/42094/ https://eprints.nottingham.ac.uk/42094/ |