Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinos
Abstract We investigate if the projected high-precision measurements of the cross section of the Higgsstrahlung process $$e^+ e^- \rightarrow Zh$$ e + e - → Z h at a future electron–positron collider can be utilised to indirectly probe the fermionic Seesaw models. We consider the two centre-of-mass...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-04-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11461-7 |
| _version_ | 1797822754290925568 |
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| author | Tobias Felkl Adam Lackner Michael Schmidt |
| author_facet | Tobias Felkl Adam Lackner Michael Schmidt |
| author_sort | Tobias Felkl |
| collection | DOAJ |
| description | Abstract We investigate if the projected high-precision measurements of the cross section of the Higgsstrahlung process $$e^+ e^- \rightarrow Zh$$ e + e - → Z h at a future electron–positron collider can be utilised to indirectly probe the fermionic Seesaw models. We consider the two centre-of-mass energies $$\sqrt{s}=240$$ s = 240 GeV and 365 GeV, and compare the collider reaches to constraints from electroweak observables, probes of lepton flavour universality and the existing and prospective bounds from searches for lepton flavour violation. For the analysis we assume the limit of an exactly conserved lepton-number symmetry. We find that while any appreciable correction to the Higgsstrahlung cross section is already strictly constrained in the Type-I Seesaw model, effects of up to $${\mathcal {O}}(10\%)$$ O ( 10 % ) are possible within Type-III Seesaw. |
| first_indexed | 2024-03-13T10:12:48Z |
| format | Article |
| id | doaj.art-a7f1ae6173834d0c8f3f1dd5c21423ec |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-13T10:12:48Z |
| publishDate | 2023-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-a7f1ae6173834d0c8f3f1dd5c21423ec2023-05-21T11:24:15ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-04-0183412610.1140/epjc/s10052-023-11461-7Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinosTobias Felkl0Adam Lackner1Michael Schmidt2Sydney Consortium for Particle Physics and Cosmology, School of Physics, The University of New South WalesSydney Consortium for Particle Physics and Cosmology, School of Physics, The University of New South WalesSydney Consortium for Particle Physics and Cosmology, School of Physics, The University of New South WalesAbstract We investigate if the projected high-precision measurements of the cross section of the Higgsstrahlung process $$e^+ e^- \rightarrow Zh$$ e + e - → Z h at a future electron–positron collider can be utilised to indirectly probe the fermionic Seesaw models. We consider the two centre-of-mass energies $$\sqrt{s}=240$$ s = 240 GeV and 365 GeV, and compare the collider reaches to constraints from electroweak observables, probes of lepton flavour universality and the existing and prospective bounds from searches for lepton flavour violation. For the analysis we assume the limit of an exactly conserved lepton-number symmetry. We find that while any appreciable correction to the Higgsstrahlung cross section is already strictly constrained in the Type-I Seesaw model, effects of up to $${\mathcal {O}}(10\%)$$ O ( 10 % ) are possible within Type-III Seesaw.https://doi.org/10.1140/epjc/s10052-023-11461-7 |
| spellingShingle | Tobias Felkl Adam Lackner Michael Schmidt Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinos European Physical Journal C: Particles and Fields |
| title | Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinos |
| title_full | Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinos |
| title_fullStr | Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinos |
| title_full_unstemmed | Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinos |
| title_short | Riding the Seesaw: what Higgsstrahlung may reveal about massive neutrinos |
| title_sort | riding the seesaw what higgsstrahlung may reveal about massive neutrinos |
| url | https://doi.org/10.1140/epjc/s10052-023-11461-7 |
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