The Spectrum of Goldstini and Modulini
When supersymmetry is broken in multiple sectors via independent dynamics, the theory furnishes a corresponding multiplicity of “goldstini” degrees of freedom which may play a substantial role in collider phenomenology and cosmology. In this paper, we explore the tree-level mass spectrum of goldstin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2012
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| Online Access: | http://hdl.handle.net/1721.1/72040 https://orcid.org/0000-0002-2406-8160 |
| _version_ | 1826196900432314368 |
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| author | Cheung, Clifford D'Eramo, Francesco Thaler, Jesse |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Cheung, Clifford D'Eramo, Francesco Thaler, Jesse |
| author_sort | Cheung, Clifford |
| collection | MIT |
| description | When supersymmetry is broken in multiple sectors via independent dynamics, the theory furnishes a corresponding multiplicity of “goldstini” degrees of freedom which may play a substantial role in collider phenomenology and cosmology. In this paper, we explore the tree-level mass spectrum of goldstini arising from a general admixture of F -term, D -term, and almost no-scale supersymmetry breaking, employing non-linear superfields and a novel gauge fixing for supergravity discussed in a companion paper. In theories of F -term and D -term breaking, goldstini acquire a mass which is precisely twice the gravitino mass, while the inclusion of no-scale breaking renders one of these modes, the modulino, massless. We argue that the vanishing modulino mass can be explained in terms of an accidental and spontaneously broken “global” supersymmetry. |
| first_indexed | 2024-09-23T10:39:27Z |
| format | Article |
| id | mit-1721.1/72040 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:39:27Z |
| publishDate | 2012 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/720402022-09-27T14:03:14Z The Spectrum of Goldstini and Modulini Cheung, Clifford D'Eramo, Francesco Thaler, Jesse Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Thaler, Jesse D'Eramo, Francesco Thaler, Jesse When supersymmetry is broken in multiple sectors via independent dynamics, the theory furnishes a corresponding multiplicity of “goldstini” degrees of freedom which may play a substantial role in collider phenomenology and cosmology. In this paper, we explore the tree-level mass spectrum of goldstini arising from a general admixture of F -term, D -term, and almost no-scale supersymmetry breaking, employing non-linear superfields and a novel gauge fixing for supergravity discussed in a companion paper. In theories of F -term and D -term breaking, goldstini acquire a mass which is precisely twice the gravitino mass, while the inclusion of no-scale breaking renders one of these modes, the modulino, massless. We argue that the vanishing modulino mass can be explained in terms of an accidental and spontaneously broken “global” supersymmetry. United States. Dept. of Energy (cooperative research agreement DE-FG02-05ER41360) 2012-08-08T18:34:21Z 2012-08-08T18:34:21Z 2011-08 2011-07 Article http://purl.org/eprint/type/JournalArticle 1029-8479 http://hdl.handle.net/1721.1/72040 Cheung, Clifford, Francesco D’Eramo, and Jesse Thaler. “The spectrum of goldstini and modulini.” Journal of High Energy Physics 2011.8 (2011). https://orcid.org/0000-0002-2406-8160 en_US http://dx.doi.org/10.1007/jhep08(2011)115 Journal of High Energy Physics Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Springer-Verlag Prof. Thaler via Mat Willmott |
| spellingShingle | Cheung, Clifford D'Eramo, Francesco Thaler, Jesse The Spectrum of Goldstini and Modulini |
| title | The Spectrum of Goldstini and Modulini |
| title_full | The Spectrum of Goldstini and Modulini |
| title_fullStr | The Spectrum of Goldstini and Modulini |
| title_full_unstemmed | The Spectrum of Goldstini and Modulini |
| title_short | The Spectrum of Goldstini and Modulini |
| title_sort | spectrum of goldstini and modulini |
| url | http://hdl.handle.net/1721.1/72040 https://orcid.org/0000-0002-2406-8160 |
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