Coherent collision integrals for neutrino transport equations
Abstract We present quantum kinetic equations for neutrinos and derive Feynman rules for computing scattering rates involving coherent states. Our rules encompass both flavour- and particle-antiparticle coherence and allow writing down the scattering matrix elements and collision integrals with the...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP12(2024)169 |
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| _version_ | 1841559931935784960 |
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| author | Kimmo Kainulainen Harri Parkkinen |
| author_facet | Kimmo Kainulainen Harri Parkkinen |
| author_sort | Kimmo Kainulainen |
| collection | DOAJ |
| description | Abstract We present quantum kinetic equations for neutrinos and derive Feynman rules for computing scattering rates involving coherent states. Our rules encompass both flavour- and particle-antiparticle coherence and allow writing down the scattering matrix elements and collision integrals with the same intuitive ease as with the usual non-coherent Feynman rules. Our results are useful for computing collision rates that arise routinely in the context of coherently mixing neutrinos with arbitrary masses. We give several explicit examples, including some collision integrals for coherently mixing neutrinos in supernovae. |
| format | Article |
| id | doaj-art-fe534ca201aa456bb66daa0fc2a2d574 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-fe534ca201aa456bb66daa0fc2a2d5742025-01-05T12:06:58ZengSpringerOpenJournal of High Energy Physics1029-84792024-12-0120241212610.1007/JHEP12(2024)169Coherent collision integrals for neutrino transport equationsKimmo Kainulainen0Harri Parkkinen1Department of Physics, University of JyväskyläDepartment of Physics, University of JyväskyläAbstract We present quantum kinetic equations for neutrinos and derive Feynman rules for computing scattering rates involving coherent states. Our rules encompass both flavour- and particle-antiparticle coherence and allow writing down the scattering matrix elements and collision integrals with the same intuitive ease as with the usual non-coherent Feynman rules. Our results are useful for computing collision rates that arise routinely in the context of coherently mixing neutrinos with arbitrary masses. We give several explicit examples, including some collision integrals for coherently mixing neutrinos in supernovae.https://doi.org/10.1007/JHEP12(2024)169Neutrino InteractionsNeutrino MixingSterile or Heavy Neutrinos |
| spellingShingle | Kimmo Kainulainen Harri Parkkinen Coherent collision integrals for neutrino transport equations Journal of High Energy Physics Neutrino Interactions Neutrino Mixing Sterile or Heavy Neutrinos |
| title | Coherent collision integrals for neutrino transport equations |
| title_full | Coherent collision integrals for neutrino transport equations |
| title_fullStr | Coherent collision integrals for neutrino transport equations |
| title_full_unstemmed | Coherent collision integrals for neutrino transport equations |
| title_short | Coherent collision integrals for neutrino transport equations |
| title_sort | coherent collision integrals for neutrino transport equations |
| topic | Neutrino Interactions Neutrino Mixing Sterile or Heavy Neutrinos |
| url | https://doi.org/10.1007/JHEP12(2024)169 |
| work_keys_str_mv | AT kimmokainulainen coherentcollisionintegralsforneutrinotransportequations AT harriparkkinen coherentcollisionintegralsforneutrinotransportequations |