Neutrino masses and gauged U(1) ℓ lepton number
Abstract We investigate the tree-level neutrino mass generation in the gauged U(1) ℓ lepton model recently proposed by us [1]. With the addition of one Standard Model(SM) singlet, ϕ 1(Y = 0, ℓ = 1), and one SM triplet scalar, T (Y = −1, ℓ = 0), realistic lepton masses can be accommodated. The result...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-10-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP10(2018)015 |
| _version_ | 1818475768652496896 |
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| author | We-Fu Chang John N. Ng |
| author_facet | We-Fu Chang John N. Ng |
| author_sort | We-Fu Chang |
| collection | DOAJ |
| description | Abstract We investigate the tree-level neutrino mass generation in the gauged U(1) ℓ lepton model recently proposed by us [1]. With the addition of one Standard Model(SM) singlet, ϕ 1(Y = 0, ℓ = 1), and one SM triplet scalar, T (Y = −1, ℓ = 0), realistic lepton masses can be accommodated. The resulting magnitude of neutrino mass is given by ∼ v t 3 /v L 2 , where v t and v L are the vacuum expectation values of T and ϕ 1, respectively, and it is automatically of the inverse see-saw type. Since v L is the lepton number violation scale we take it to be high, i.e. O ≳ (TeV). Moreover, the induced lepton flavor violating processes and the phenomenology of the peculiar triplet are studied. An interesting bound, 0.1 ≲ v t ≲ 24.1 GeV, is obtained when taking into account the neutrino mass generation, Br(μ → eγ), and the limits from oblique parameters, ΔS and ΔT. Collider phenomenology of the SM triplets is also discussed. |
| first_indexed | 2024-12-10T09:16:51Z |
| format | Article |
| id | doaj.art-f641ba1f8380428ea847a6a40f41da60 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-10T09:16:51Z |
| publishDate | 2018-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-f641ba1f8380428ea847a6a40f41da602022-12-22T01:54:50ZengSpringerOpenJournal of High Energy Physics1029-84792018-10-0120181012910.1007/JHEP10(2018)015Neutrino masses and gauged U(1) ℓ lepton numberWe-Fu Chang0John N. Ng1Department of Physics, National Tsing Hua UniversityTRIUMF Theory GroupAbstract We investigate the tree-level neutrino mass generation in the gauged U(1) ℓ lepton model recently proposed by us [1]. With the addition of one Standard Model(SM) singlet, ϕ 1(Y = 0, ℓ = 1), and one SM triplet scalar, T (Y = −1, ℓ = 0), realistic lepton masses can be accommodated. The resulting magnitude of neutrino mass is given by ∼ v t 3 /v L 2 , where v t and v L are the vacuum expectation values of T and ϕ 1, respectively, and it is automatically of the inverse see-saw type. Since v L is the lepton number violation scale we take it to be high, i.e. O ≳ (TeV). Moreover, the induced lepton flavor violating processes and the phenomenology of the peculiar triplet are studied. An interesting bound, 0.1 ≲ v t ≲ 24.1 GeV, is obtained when taking into account the neutrino mass generation, Br(μ → eγ), and the limits from oblique parameters, ΔS and ΔT. Collider phenomenology of the SM triplets is also discussed.http://link.springer.com/article/10.1007/JHEP10(2018)015Anomalies in Field and String TheoriesBeyond Standard ModelGauge SymmetryNeutrino Physics |
| spellingShingle | We-Fu Chang John N. Ng Neutrino masses and gauged U(1) ℓ lepton number Journal of High Energy Physics Anomalies in Field and String Theories Beyond Standard Model Gauge Symmetry Neutrino Physics |
| title | Neutrino masses and gauged U(1) ℓ lepton number |
| title_full | Neutrino masses and gauged U(1) ℓ lepton number |
| title_fullStr | Neutrino masses and gauged U(1) ℓ lepton number |
| title_full_unstemmed | Neutrino masses and gauged U(1) ℓ lepton number |
| title_short | Neutrino masses and gauged U(1) ℓ lepton number |
| title_sort | neutrino masses and gauged u 1 l lepton number |
| topic | Anomalies in Field and String Theories Beyond Standard Model Gauge Symmetry Neutrino Physics |
| url | http://link.springer.com/article/10.1007/JHEP10(2018)015 |
| work_keys_str_mv | AT wefuchang neutrinomassesandgaugedu1lleptonnumber AT johnnng neutrinomassesandgaugedu1lleptonnumber |