Final state rescattering effects in axio-hadronic η and η′ decays
Abstract It has been long-understood that final state rescattering effects provide O $$ \mathcal{O} $$ (1) corrections to hadronic meson decays rates, such as η → πππ and η′ → ηππ. Hence, one would expect that such effects would be just as important in axio-hadronic η and η′ decays, such as η (′) →...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2024)264 |
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| author | Daniele S. M. Alves Sergi Gonzàlez-Solís |
| author_facet | Daniele S. M. Alves Sergi Gonzàlez-Solís |
| author_sort | Daniele S. M. Alves |
| collection | DOAJ |
| description | Abstract It has been long-understood that final state rescattering effects provide O $$ \mathcal{O} $$ (1) corrections to hadronic meson decays rates, such as η → πππ and η′ → ηππ. Hence, one would expect that such effects would be just as important in axio-hadronic η and η′ decays, such as η (′) → ππa, where a is an axion or axion-like particle (ALP). And indeed they are, as we show in this paper by using the treatment of dispersion relations to include the effects of strong final state interactions in several axio-hadronic processes, namely, η (′) → π 0 π 0 a, η (′) → π + π − a, and η′ → ηπ 0 a. We also compute the perturbative, leading order decay rates for multiple ALP emission, such as in η (′) → π 0 aa, η′ → ηaa and η (′) → aaa, and briefly discuss the expected corrections from strong interactions and the processes that must be considered for an accurate rate estimation of these multi-ALP decay channels. |
| format | Article |
| id | doaj-art-963e70e7aad74cc6a8e16f401501ea91 |
| institution | OA Journals |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-963e70e7aad74cc6a8e16f401501ea912025-08-20T02:11:18ZengSpringerOpenJournal of High Energy Physics1029-84792024-07-012024713110.1007/JHEP07(2024)264Final state rescattering effects in axio-hadronic η and η′ decaysDaniele S. M. Alves0Sergi Gonzàlez-Solís1Theoretical Division, Los Alamos National LaboratoryTheoretical Division, Los Alamos National LaboratoryAbstract It has been long-understood that final state rescattering effects provide O $$ \mathcal{O} $$ (1) corrections to hadronic meson decays rates, such as η → πππ and η′ → ηππ. Hence, one would expect that such effects would be just as important in axio-hadronic η and η′ decays, such as η (′) → ππa, where a is an axion or axion-like particle (ALP). And indeed they are, as we show in this paper by using the treatment of dispersion relations to include the effects of strong final state interactions in several axio-hadronic processes, namely, η (′) → π 0 π 0 a, η (′) → π + π − a, and η′ → ηπ 0 a. We also compute the perturbative, leading order decay rates for multiple ALP emission, such as in η (′) → π 0 aa, η′ → ηaa and η (′) → aaa, and briefly discuss the expected corrections from strong interactions and the processes that must be considered for an accurate rate estimation of these multi-ALP decay channels.https://doi.org/10.1007/JHEP07(2024)264Axions and ALPsChiral LagrangianNew Light Particles |
| spellingShingle | Daniele S. M. Alves Sergi Gonzàlez-Solís Final state rescattering effects in axio-hadronic η and η′ decays Journal of High Energy Physics Axions and ALPs Chiral Lagrangian New Light Particles |
| title | Final state rescattering effects in axio-hadronic η and η′ decays |
| title_full | Final state rescattering effects in axio-hadronic η and η′ decays |
| title_fullStr | Final state rescattering effects in axio-hadronic η and η′ decays |
| title_full_unstemmed | Final state rescattering effects in axio-hadronic η and η′ decays |
| title_short | Final state rescattering effects in axio-hadronic η and η′ decays |
| title_sort | final state rescattering effects in axio hadronic η and η decays |
| topic | Axions and ALPs Chiral Lagrangian New Light Particles |
| url | https://doi.org/10.1007/JHEP07(2024)264 |
| work_keys_str_mv | AT danielesmalves finalstaterescatteringeffectsinaxiohadronicēandēdecays AT sergigonzalezsolis finalstaterescatteringeffectsinaxiohadronicēandēdecays |