Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models
Abstract We examine the observability of heavy neutrino (ν h ) signatures of a U(1)′ enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the the Large Hadron Collider (LHC). We show that heavy neutrinos can be rather long-lived partic...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-04-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP04(2017)081 |
| _version_ | 1828752579357573120 |
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| author | Elena Accomando Luigi Delle Rose Stefano Moretti Emmanuel Olaiya Claire H. Shepherd-Themistocleous |
| author_facet | Elena Accomando Luigi Delle Rose Stefano Moretti Emmanuel Olaiya Claire H. Shepherd-Themistocleous |
| author_sort | Elena Accomando |
| collection | DOAJ |
| description | Abstract We examine the observability of heavy neutrino (ν h ) signatures of a U(1)′ enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the the Large Hadron Collider (LHC). We show that heavy neutrinos can be rather long-lived particles producing distinctive displaced vertices that can be accessed in the CERN LHC detectors. We concentrate here on the gluon fusion production mechanism gg → H 1,2 → ν h ν h , where H 1 is the discovered SM-like Higgs and H 2 is a heavier state, yielding displaced leptons following ν h decays into weak gauge bosons. Using data collected by the end of the LHC Run 2, these signatures would prove to be accessible with negligibly small background. |
| first_indexed | 2024-12-10T21:11:47Z |
| format | Article |
| id | doaj.art-71c198eda4ea4dab90decd7edb6078e7 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-10T21:11:47Z |
| publishDate | 2017-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-71c198eda4ea4dab90decd7edb6078e72022-12-22T01:33:27ZengSpringerOpenJournal of High Energy Physics1029-84792017-04-012017412910.1007/JHEP04(2017)081Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ modelsElena Accomando0Luigi Delle Rose1Stefano Moretti2Emmanuel Olaiya3Claire H. Shepherd-Themistocleous4School of Physics and Astronomy, University of SouthamptonSchool of Physics and Astronomy, University of SouthamptonSchool of Physics and Astronomy, University of SouthamptonParticle Physics Department, Rutherford Appleton LaboratoryParticle Physics Department, Rutherford Appleton LaboratoryAbstract We examine the observability of heavy neutrino (ν h ) signatures of a U(1)′ enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the the Large Hadron Collider (LHC). We show that heavy neutrinos can be rather long-lived particles producing distinctive displaced vertices that can be accessed in the CERN LHC detectors. We concentrate here on the gluon fusion production mechanism gg → H 1,2 → ν h ν h , where H 1 is the discovered SM-like Higgs and H 2 is a heavier state, yielding displaced leptons following ν h decays into weak gauge bosons. Using data collected by the end of the LHC Run 2, these signatures would prove to be accessible with negligibly small background.http://link.springer.com/article/10.1007/JHEP04(2017)081Beyond Standard ModelHiggs PhysicsNeutrino Physics |
| spellingShingle | Elena Accomando Luigi Delle Rose Stefano Moretti Emmanuel Olaiya Claire H. Shepherd-Themistocleous Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models Journal of High Energy Physics Beyond Standard Model Higgs Physics Neutrino Physics |
| title | Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models |
| title_full | Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models |
| title_fullStr | Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models |
| title_full_unstemmed | Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models |
| title_short | Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models |
| title_sort | novel sm like higgs decay into displaced heavy neutrino pairs in u 1 models |
| topic | Beyond Standard Model Higgs Physics Neutrino Physics |
| url | http://link.springer.com/article/10.1007/JHEP04(2017)081 |
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