Colorful Twisted Top Partners and Partnerium at the LHC
In scenarios that stabilize the electroweak scale, the top quark is typically accompanied by partner particles. In this work, we demonstrate how extended stabilizing symmetries can yield scalar or fermionic top partners that transform as ordinary color triplets but carry exotic electric charges. We...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer-Verlag/SISSA
2017
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| Online Access: | http://hdl.handle.net/1721.1/110301 https://orcid.org/0000-0002-2406-8160 |
| _version_ | 1826199871607013376 |
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| author | Kats, Yevgeny McCullough, Matthew Perez, Gilad Soreq, Yotam Thaler, Jesse |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Kats, Yevgeny McCullough, Matthew Perez, Gilad Soreq, Yotam Thaler, Jesse |
| author_sort | Kats, Yevgeny |
| collection | MIT |
| description | In scenarios that stabilize the electroweak scale, the top quark is typically accompanied by partner particles. In this work, we demonstrate how extended stabilizing symmetries can yield scalar or fermionic top partners that transform as ordinary color triplets but carry exotic electric charges. We refer to these scenarios as “hypertwisted” since they involve modifications to hypercharge in the top sector. As proofs of principle, we construct two hypertwisted scenarios: a supersymmetric construction with spin-0 top partners, and a composite Higgs construction with spin-1/2 top partners. In both cases, the top partners are still phenomenologically compatible with the mass range motivated by weak-scale naturalness. The phenomenology of hypertwisted scenarios is diverse, since the lifetimes and decay modes of the top partners are model dependent. The novel coupling structure opens up search channels that do not typically arise in top-partner scenarios, such as pair production of top-plus-jet resonances. Furthermore, hypertwisted top partners are typically sufficiently long lived to form “top-partnerium” bound states that decay predominantly via annihilation, motivating searches for rare narrow resonances with diboson decay modes. |
| first_indexed | 2024-09-23T11:27:08Z |
| format | Article |
| id | mit-1721.1/110301 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:27:08Z |
| publishDate | 2017 |
| publisher | Springer-Verlag/SISSA |
| record_format | dspace |
| spelling | mit-1721.1/1103012022-09-27T19:39:25Z Colorful Twisted Top Partners and Partnerium at the LHC Kats, Yevgeny McCullough, Matthew Perez, Gilad Soreq, Yotam Thaler, Jesse Massachusetts Institute of Technology. Center for Theoretical Physics Soreq, Yotam Thaler, Jesse In scenarios that stabilize the electroweak scale, the top quark is typically accompanied by partner particles. In this work, we demonstrate how extended stabilizing symmetries can yield scalar or fermionic top partners that transform as ordinary color triplets but carry exotic electric charges. We refer to these scenarios as “hypertwisted” since they involve modifications to hypercharge in the top sector. As proofs of principle, we construct two hypertwisted scenarios: a supersymmetric construction with spin-0 top partners, and a composite Higgs construction with spin-1/2 top partners. In both cases, the top partners are still phenomenologically compatible with the mass range motivated by weak-scale naturalness. The phenomenology of hypertwisted scenarios is diverse, since the lifetimes and decay modes of the top partners are model dependent. The novel coupling structure opens up search channels that do not typically arise in top-partner scenarios, such as pair production of top-plus-jet resonances. Furthermore, hypertwisted top partners are typically sufficiently long lived to form “top-partnerium” bound states that decay predominantly via annihilation, motivating searches for rare narrow resonances with diboson decay modes. 2017-06-27T14:15:06Z 2017-06-27T14:15:06Z 2017-06 2017-06-25T03:20:27Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/110301 Kats, Yevgeny; McCullough, Matthew; Perez, Gilad; Soreq, Yotam and Thaler, Jesse. “Colorful Twisted Top Partners and Partnerium at the LHC.” Journal of High Energy Physics 2017, 6 (June 2017): 1–34 © 2017 The Authors https://orcid.org/0000-0002-2406-8160 en http://dx.doi.org/10.1007/JHEP06(2017)126 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer-Verlag/SISSA Springer Berlin Heidelberg |
| spellingShingle | Kats, Yevgeny McCullough, Matthew Perez, Gilad Soreq, Yotam Thaler, Jesse Colorful Twisted Top Partners and Partnerium at the LHC |
| title | Colorful Twisted Top Partners and Partnerium at the LHC |
| title_full | Colorful Twisted Top Partners and Partnerium at the LHC |
| title_fullStr | Colorful Twisted Top Partners and Partnerium at the LHC |
| title_full_unstemmed | Colorful Twisted Top Partners and Partnerium at the LHC |
| title_short | Colorful Twisted Top Partners and Partnerium at the LHC |
| title_sort | colorful twisted top partners and partnerium at the lhc |
| url | http://hdl.handle.net/1721.1/110301 https://orcid.org/0000-0002-2406-8160 |
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