Exploring chirality structure in nucleon decay
Abstract Baryon number is an accidental symmetry in the Standard Model, but its violation is theoretically anticipated, making the search for such processes a promising avenue for discovering new physics. In this paper, we explore how measurements of different nucleon decay channels can reveal the s...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2025)175 |
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| _version_ | 1823863467926355968 |
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| author | Koichi Hamaguchi Shihwen Hor Natsumi Nagata Hiroki Takahashi |
| author_facet | Koichi Hamaguchi Shihwen Hor Natsumi Nagata Hiroki Takahashi |
| author_sort | Koichi Hamaguchi |
| collection | DOAJ |
| description | Abstract Baryon number is an accidental symmetry in the Standard Model, but its violation is theoretically anticipated, making the search for such processes a promising avenue for discovering new physics. In this paper, we explore how measurements of different nucleon decay channels can reveal the structure of the underlying theory. We investigate the chirality structure of baryon-number violating interactions through lifetime measurements of strangeness-conserving nucleon-decay channels. By employing an effective field theory approach, we demonstrate that the ratio of partial decay widths of proton decay channels, Γ(p → ηℓ +)/Γ(p → π 0 ℓ +), where ℓ + denotes a positron or anti-muon, is sensitive to this chirality structure. Furthermore, we find that in certain new physics models, both anti- lepton and anti-neutrino channels provide valuable insights into the model’s structure. Our results highlight the importance of searching for various decay channels in upcoming nucleon decay experiments. |
| format | Article |
| id | doaj-art-72bc21dc75764c9890ca4b46189217be |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-72bc21dc75764c9890ca4b46189217be2025-02-09T12:07:10ZengSpringerOpenJournal of High Energy Physics1029-84792025-01-012025112510.1007/JHEP01(2025)175Exploring chirality structure in nucleon decayKoichi Hamaguchi0Shihwen Hor1Natsumi Nagata2Hiroki Takahashi3Department of Physics, University of TokyoDepartment of Physics, University of TokyoDepartment of Physics, University of TokyoDepartment of Physics, University of TokyoAbstract Baryon number is an accidental symmetry in the Standard Model, but its violation is theoretically anticipated, making the search for such processes a promising avenue for discovering new physics. In this paper, we explore how measurements of different nucleon decay channels can reveal the structure of the underlying theory. We investigate the chirality structure of baryon-number violating interactions through lifetime measurements of strangeness-conserving nucleon-decay channels. By employing an effective field theory approach, we demonstrate that the ratio of partial decay widths of proton decay channels, Γ(p → ηℓ +)/Γ(p → π 0 ℓ +), where ℓ + denotes a positron or anti-muon, is sensitive to this chirality structure. Furthermore, we find that in certain new physics models, both anti- lepton and anti-neutrino channels provide valuable insights into the model’s structure. Our results highlight the importance of searching for various decay channels in upcoming nucleon decay experiments.https://doi.org/10.1007/JHEP01(2025)175Baryon/Lepton Number ViolationGrand UnificationSupersymmetry |
| spellingShingle | Koichi Hamaguchi Shihwen Hor Natsumi Nagata Hiroki Takahashi Exploring chirality structure in nucleon decay Journal of High Energy Physics Baryon/Lepton Number Violation Grand Unification Supersymmetry |
| title | Exploring chirality structure in nucleon decay |
| title_full | Exploring chirality structure in nucleon decay |
| title_fullStr | Exploring chirality structure in nucleon decay |
| title_full_unstemmed | Exploring chirality structure in nucleon decay |
| title_short | Exploring chirality structure in nucleon decay |
| title_sort | exploring chirality structure in nucleon decay |
| topic | Baryon/Lepton Number Violation Grand Unification Supersymmetry |
| url | https://doi.org/10.1007/JHEP01(2025)175 |
| work_keys_str_mv | AT koichihamaguchi exploringchiralitystructureinnucleondecay AT shihwenhor exploringchiralitystructureinnucleondecay AT natsuminagata exploringchiralitystructureinnucleondecay AT hirokitakahashi exploringchiralitystructureinnucleondecay |