Accidental SO(10) axion from gauged flavour
Abstract An accidental U(1) Peccei-Quinn (PQ) symmetry automatically arises in a class of SO(10) unified theories upon gauging the SU(3) f flavour group. The PQ symmetry is protected by the ℤ4 × ℤ3 center of SO(10) × SU(3) f up to effective operators of canonical dimension six. However, high-scale c...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-11-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | http://link.springer.com/article/10.1007/JHEP11(2020)074 |
| _version_ | 1818897969603149824 |
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| author | Luca Di Luzio |
| author_facet | Luca Di Luzio |
| author_sort | Luca Di Luzio |
| collection | DOAJ |
| description | Abstract An accidental U(1) Peccei-Quinn (PQ) symmetry automatically arises in a class of SO(10) unified theories upon gauging the SU(3) f flavour group. The PQ symmetry is protected by the ℤ4 × ℤ3 center of SO(10) × SU(3) f up to effective operators of canonical dimension six. However, high-scale contributions to the axion potential posing a PQ quality problem arise only at d = 9. In the pre-inflationary PQ breaking scenario the axion mass window is predicted to be m a ∈ [7 × 10 −8 , 10 −3] eV, where the lower end is bounded by the seesaw scale and the upper end by iso-curvature fluctuations. A high-quality axion, that is immune to the PQ quality problem, is obtained for m a ≳ 2 0.02 eV. We finally offer a general perspective on the PQ quality problem in grand unified theories. |
| first_indexed | 2024-12-19T19:24:37Z |
| format | Article |
| id | doaj.art-57a34e75662946b0952ed8b9c90490c5 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-19T19:24:37Z |
| publishDate | 2020-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-57a34e75662946b0952ed8b9c90490c52022-12-21T20:08:49ZengSpringerOpenJournal of High Energy Physics1029-84792020-11-0120201112510.1007/JHEP11(2020)074Accidental SO(10) axion from gauged flavourLuca Di Luzio0Deutsches Elektronen-Synchrotron (DESY)Abstract An accidental U(1) Peccei-Quinn (PQ) symmetry automatically arises in a class of SO(10) unified theories upon gauging the SU(3) f flavour group. The PQ symmetry is protected by the ℤ4 × ℤ3 center of SO(10) × SU(3) f up to effective operators of canonical dimension six. However, high-scale contributions to the axion potential posing a PQ quality problem arise only at d = 9. In the pre-inflationary PQ breaking scenario the axion mass window is predicted to be m a ∈ [7 × 10 −8 , 10 −3] eV, where the lower end is bounded by the seesaw scale and the upper end by iso-curvature fluctuations. A high-quality axion, that is immune to the PQ quality problem, is obtained for m a ≳ 2 0.02 eV. We finally offer a general perspective on the PQ quality problem in grand unified theories.http://link.springer.com/article/10.1007/JHEP11(2020)074Beyond Standard ModelGlobal SymmetriesGUT |
| spellingShingle | Luca Di Luzio Accidental SO(10) axion from gauged flavour Journal of High Energy Physics Beyond Standard Model Global Symmetries GUT |
| title | Accidental SO(10) axion from gauged flavour |
| title_full | Accidental SO(10) axion from gauged flavour |
| title_fullStr | Accidental SO(10) axion from gauged flavour |
| title_full_unstemmed | Accidental SO(10) axion from gauged flavour |
| title_short | Accidental SO(10) axion from gauged flavour |
| title_sort | accidental so 10 axion from gauged flavour |
| topic | Beyond Standard Model Global Symmetries GUT |
| url | http://link.springer.com/article/10.1007/JHEP11(2020)074 |
| work_keys_str_mv | AT lucadiluzio accidentalso10axionfromgaugedflavour |