Enabling precise predictions for left-right symmetry at colliders
Abstract We investigate the structure of the minimal left-right symmetric model that enables precise predictions in the gauge, scalar and neutrino sector. We revisit the complete set of mass spectra and mixings for the charged and neutral gauge bosons, would-be-Goldstones and gauge fixing, together...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13614-8 |
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| author | Jonathan Kriewald Miha Nemevšek Fabrizio Nesti |
| author_facet | Jonathan Kriewald Miha Nemevšek Fabrizio Nesti |
| author_sort | Jonathan Kriewald |
| collection | DOAJ |
| description | Abstract We investigate the structure of the minimal left-right symmetric model that enables precise predictions in the gauge, scalar and neutrino sector. We revisit the complete set of mass spectra and mixings for the charged and neutral gauge bosons, would-be-Goldstones and gauge fixing, together with the ghost Lagrangian. In the scalar sector, we analytically re-derive all the massive states with mixings and devise a non-trivial physical input scheme, expressing the model couplings in terms of masses and mixing angles. Fermion couplings are also determined in closed form, including the Dirac mixing in the neutrino sector, evaluated explicitly using the Cayley–Hamilton theorem. These analytic developments are implemented in a comprehensive FeynRules model file. We calculate the one loop QCD corrections and provide a complete UFO file for NLO studies, demonstrated on relevant hadron-collider benchmarks. We provide various restricted variants of the model file with different gauges, massless states, neutrino hierarchies and parity violating $$g_L \ne g_R$$ g L ≠ g R gauge couplings. |
| format | Article |
| id | doaj-art-5708f3feeb314d4da3193257220534ec |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-5708f3feeb314d4da3193257220534ec2025-02-02T12:39:12ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841212510.1140/epjc/s10052-024-13614-8Enabling precise predictions for left-right symmetry at collidersJonathan Kriewald0Miha Nemevšek1Fabrizio Nesti2Jožef Stefan InstituteJožef Stefan InstituteDipartimento di Scienze Fisiche e Chimiche, Università dell’AquilaAbstract We investigate the structure of the minimal left-right symmetric model that enables precise predictions in the gauge, scalar and neutrino sector. We revisit the complete set of mass spectra and mixings for the charged and neutral gauge bosons, would-be-Goldstones and gauge fixing, together with the ghost Lagrangian. In the scalar sector, we analytically re-derive all the massive states with mixings and devise a non-trivial physical input scheme, expressing the model couplings in terms of masses and mixing angles. Fermion couplings are also determined in closed form, including the Dirac mixing in the neutrino sector, evaluated explicitly using the Cayley–Hamilton theorem. These analytic developments are implemented in a comprehensive FeynRules model file. We calculate the one loop QCD corrections and provide a complete UFO file for NLO studies, demonstrated on relevant hadron-collider benchmarks. We provide various restricted variants of the model file with different gauges, massless states, neutrino hierarchies and parity violating $$g_L \ne g_R$$ g L ≠ g R gauge couplings.https://doi.org/10.1140/epjc/s10052-024-13614-8 |
| spellingShingle | Jonathan Kriewald Miha Nemevšek Fabrizio Nesti Enabling precise predictions for left-right symmetry at colliders European Physical Journal C: Particles and Fields |
| title | Enabling precise predictions for left-right symmetry at colliders |
| title_full | Enabling precise predictions for left-right symmetry at colliders |
| title_fullStr | Enabling precise predictions for left-right symmetry at colliders |
| title_full_unstemmed | Enabling precise predictions for left-right symmetry at colliders |
| title_short | Enabling precise predictions for left-right symmetry at colliders |
| title_sort | enabling precise predictions for left right symmetry at colliders |
| url | https://doi.org/10.1140/epjc/s10052-024-13614-8 |
| work_keys_str_mv | AT jonathankriewald enablingprecisepredictionsforleftrightsymmetryatcolliders AT mihanemevsek enablingprecisepredictionsforleftrightsymmetryatcolliders AT fabrizionesti enablingprecisepredictionsforleftrightsymmetryatcolliders |