331 Models and Bilepton Searches at LHC
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866916110754906112 |
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| author | Calabrese, Roberta Iorio, Alberto Orso Maria Morisi, Stefano Ricciardi, Giulia Vignaroli, Natascia |
| author_facet | Calabrese, Roberta Iorio, Alberto Orso Maria Morisi, Stefano Ricciardi, Giulia Vignaroli, Natascia |
| contents | Despite being remarkable predictive, the Standard Model leaves unanswered several important issues, which motivate an ongoing search for its extensions. One fashionable possibility are the so-called 331 models, where the electroweak gauge group is extended to $SU_L(3)\times U(1)$. We focus on a minimal extension which includes vector-like quarks (VLQs) and new gauge bosons, performing a consistent analysis of the production at LHC of a pair of doubly-charged bileptons. We include for the first time all the relevant processes where VLQs contribute, and in particular the associate production VLQ-bilepton. Finally, we extract the bound on the bilepton mass, $m_Y>$ 1300 GeV, from a reinterpretation of a recent ATLAS search for doubly-charged Higgs bosons in multi-lepton final states. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2312_02287 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | 331 Models and Bilepton Searches at LHC Calabrese, Roberta Iorio, Alberto Orso Maria Morisi, Stefano Ricciardi, Giulia Vignaroli, Natascia High Energy Physics - Phenomenology High Energy Physics - Experiment Despite being remarkable predictive, the Standard Model leaves unanswered several important issues, which motivate an ongoing search for its extensions. One fashionable possibility are the so-called 331 models, where the electroweak gauge group is extended to $SU_L(3)\times U(1)$. We focus on a minimal extension which includes vector-like quarks (VLQs) and new gauge bosons, performing a consistent analysis of the production at LHC of a pair of doubly-charged bileptons. We include for the first time all the relevant processes where VLQs contribute, and in particular the associate production VLQ-bilepton. Finally, we extract the bound on the bilepton mass, $m_Y>$ 1300 GeV, from a reinterpretation of a recent ATLAS search for doubly-charged Higgs bosons in multi-lepton final states. |
| title | 331 Models and Bilepton Searches at LHC |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2312.02287 |