Neutrino oscillations and scattering theory
Abstract We derive the neutrino oscillation probability in vacuum using scattering theory methods developed earlier in the context of collider physics [1–3]. It is computed from Feynman diagrams that combine neutrino production and detection processes into a single quantum amplitude. Initial-state p...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2025)035 |
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| author | Ilian Dobrev Kirill Melnikov Thomas Schwetz |
| author_facet | Ilian Dobrev Kirill Melnikov Thomas Schwetz |
| author_sort | Ilian Dobrev |
| collection | DOAJ |
| description | Abstract We derive the neutrino oscillation probability in vacuum using scattering theory methods developed earlier in the context of collider physics [1–3]. It is computed from Feynman diagrams that combine neutrino production and detection processes into a single quantum amplitude. Initial-state particles in the neutrino source and the detector are treated as wave packets. In contrast to many other approaches, we work with transition probabilities, rather than the amplitude itself, and do not specify the form of the wave packets to arrive at the neutrino oscillation formula. Our approach offers a simple and transparent framework to discuss decoherence effects in neutrino oscillations, as well as the effects of the finite lifetime of the neutrino source. The latter are particularly relevant for oscillation experiments using neutrinos from pion decays in flight. |
| format | Article |
| id | doaj-art-a25dd7dfb524496eb8c44b4e513e4a9c |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-a25dd7dfb524496eb8c44b4e513e4a9c2025-08-20T04:01:44ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025712410.1007/JHEP07(2025)035Neutrino oscillations and scattering theoryIlian Dobrev0Kirill Melnikov1Thomas Schwetz2Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT)Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT)Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT)Abstract We derive the neutrino oscillation probability in vacuum using scattering theory methods developed earlier in the context of collider physics [1–3]. It is computed from Feynman diagrams that combine neutrino production and detection processes into a single quantum amplitude. Initial-state particles in the neutrino source and the detector are treated as wave packets. In contrast to many other approaches, we work with transition probabilities, rather than the amplitude itself, and do not specify the form of the wave packets to arrive at the neutrino oscillation formula. Our approach offers a simple and transparent framework to discuss decoherence effects in neutrino oscillations, as well as the effects of the finite lifetime of the neutrino source. The latter are particularly relevant for oscillation experiments using neutrinos from pion decays in flight.https://doi.org/10.1007/JHEP07(2025)035Neutrino MixingNeutrino Interactions |
| spellingShingle | Ilian Dobrev Kirill Melnikov Thomas Schwetz Neutrino oscillations and scattering theory Journal of High Energy Physics Neutrino Mixing Neutrino Interactions |
| title | Neutrino oscillations and scattering theory |
| title_full | Neutrino oscillations and scattering theory |
| title_fullStr | Neutrino oscillations and scattering theory |
| title_full_unstemmed | Neutrino oscillations and scattering theory |
| title_short | Neutrino oscillations and scattering theory |
| title_sort | neutrino oscillations and scattering theory |
| topic | Neutrino Mixing Neutrino Interactions |
| url | https://doi.org/10.1007/JHEP07(2025)035 |
| work_keys_str_mv | AT iliandobrev neutrinooscillationsandscatteringtheory AT kirillmelnikov neutrinooscillationsandscatteringtheory AT thomasschwetz neutrinooscillationsandscatteringtheory |