Baryon-number-violating nucleon decays in ALP effective field theories
Abstract The search for baryon-number-violating (BNV) nucleon decay is an intriguing probe of new physics beyond the SM in future neutrino experiments with enhanced sensitivity. The dark sector states such as an axion or axion-like particle (ALP) can induce nucleon decays with distinct signature and...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-08-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP08(2024)221 |
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| author | Tong Li Michael A. Schmidt Chang-Yuan Yao |
| author_facet | Tong Li Michael A. Schmidt Chang-Yuan Yao |
| author_sort | Tong Li |
| collection | DOAJ |
| description | Abstract The search for baryon-number-violating (BNV) nucleon decay is an intriguing probe of new physics beyond the SM in future neutrino experiments with enhanced sensitivity. The dark sector states such as an axion or axion-like particle (ALP) can induce nucleon decays with distinct signature and kinematics from the conventional nucleon decays. In this work, we study the ALP effective field theories (EFTs) with baryon number violation and the impact of light ALP on BNV nucleon decays. We revisit the dimension-8 BNV operators in the extended EFTs with an ALP field a respecting shift symmetry. The low-energy EFT operators with |∆(B – L)| = 2 and |∆(B – L)| = 0 are matched to the baryon chiral perturbation theory. We obtain the effective chiral Lagrangian and the BNV interactions between ALP and baryons/mesons. The ALP interactions lead to two-body baryon decays B → ℓ (or ν) a and three-body nucleon decays N → M ℓ (or ν) a. We obtain the constraints on the UV scale from the invisible Λ0 decay search at BESIII, the invisible neutron decay search at KamLAND and proton decay search at Super-K. We also show the projections of some other baryon/nucleon decays and present the distinct distributions of kinematic observable. |
| format | Article |
| id | doaj-art-4db535d8c1cb465f8543e8abc51e3608 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-4db535d8c1cb465f8543e8abc51e36082024-11-24T12:07:38ZengSpringerOpenJournal of High Energy Physics1029-84792024-08-012024813010.1007/JHEP08(2024)221Baryon-number-violating nucleon decays in ALP effective field theoriesTong Li0Michael A. Schmidt1Chang-Yuan Yao2School of Physics, Nankai UniversitySydney Consortium for Particle Physics and Cosmology, School of Physics, The University of New South WalesSchool of Physics, Nankai UniversityAbstract The search for baryon-number-violating (BNV) nucleon decay is an intriguing probe of new physics beyond the SM in future neutrino experiments with enhanced sensitivity. The dark sector states such as an axion or axion-like particle (ALP) can induce nucleon decays with distinct signature and kinematics from the conventional nucleon decays. In this work, we study the ALP effective field theories (EFTs) with baryon number violation and the impact of light ALP on BNV nucleon decays. We revisit the dimension-8 BNV operators in the extended EFTs with an ALP field a respecting shift symmetry. The low-energy EFT operators with |∆(B – L)| = 2 and |∆(B – L)| = 0 are matched to the baryon chiral perturbation theory. We obtain the effective chiral Lagrangian and the BNV interactions between ALP and baryons/mesons. The ALP interactions lead to two-body baryon decays B → ℓ (or ν) a and three-body nucleon decays N → M ℓ (or ν) a. We obtain the constraints on the UV scale from the invisible Λ0 decay search at BESIII, the invisible neutron decay search at KamLAND and proton decay search at Super-K. We also show the projections of some other baryon/nucleon decays and present the distinct distributions of kinematic observable.https://doi.org/10.1007/JHEP08(2024)221Axions and ALPsBaryon/Lepton Number Violation |
| spellingShingle | Tong Li Michael A. Schmidt Chang-Yuan Yao Baryon-number-violating nucleon decays in ALP effective field theories Journal of High Energy Physics Axions and ALPs Baryon/Lepton Number Violation |
| title | Baryon-number-violating nucleon decays in ALP effective field theories |
| title_full | Baryon-number-violating nucleon decays in ALP effective field theories |
| title_fullStr | Baryon-number-violating nucleon decays in ALP effective field theories |
| title_full_unstemmed | Baryon-number-violating nucleon decays in ALP effective field theories |
| title_short | Baryon-number-violating nucleon decays in ALP effective field theories |
| title_sort | baryon number violating nucleon decays in alp effective field theories |
| topic | Axions and ALPs Baryon/Lepton Number Violation |
| url | https://doi.org/10.1007/JHEP08(2024)221 |
| work_keys_str_mv | AT tongli baryonnumberviolatingnucleondecaysinalpeffectivefieldtheories AT michaelaschmidt baryonnumberviolatingnucleondecaysinalpeffectivefieldtheories AT changyuanyao baryonnumberviolatingnucleondecaysinalpeffectivefieldtheories |