Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings
Abstract We consider heterotic string theories in nine and eight dimensions. We identify the disconnected part of the spacetime gauge group by studying the outer automorphism of the charge lattices. The absence of the global symmetry indicates the existence of non-supersymmetric codimension two bran...
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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)141 |
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| _version_ | 1823863481076547584 |
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| author | Yuta Hamada Arata Ishige |
| author_facet | Yuta Hamada Arata Ishige |
| author_sort | Yuta Hamada |
| collection | DOAJ |
| description | Abstract We consider heterotic string theories in nine and eight dimensions. We identify the disconnected part of the spacetime gauge group by studying the outer automorphism of the charge lattices. The absence of the global symmetry indicates the existence of non-supersymmetric codimension two branes. Moreover, we provide a list of gauge groups and matter contents of non-supersymmetric rank-reduced heterotic string theories (a branch corresponding to the E 8 string on S 1) from the orbifolding of the outer automorphism as well as the fermion parity. We also provide examples in eight dimensions. |
| format | Article |
| id | doaj-art-bdf33821d0e2422ea4ec97c5f39162ba |
| 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-bdf33821d0e2422ea4ec97c5f39162ba2025-02-09T12:07:30ZengSpringerOpenJournal of High Energy Physics1029-84792025-01-012025113510.1007/JHEP01(2025)141Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic stringsYuta Hamada0Arata Ishige1Theory Center, IPNS, High Energy Accelerator Research Organization (KEK)Graduate Institute for Advanced Studies, SOKENDAIAbstract We consider heterotic string theories in nine and eight dimensions. We identify the disconnected part of the spacetime gauge group by studying the outer automorphism of the charge lattices. The absence of the global symmetry indicates the existence of non-supersymmetric codimension two branes. Moreover, we provide a list of gauge groups and matter contents of non-supersymmetric rank-reduced heterotic string theories (a branch corresponding to the E 8 string on S 1) from the orbifolding of the outer automorphism as well as the fermion parity. We also provide examples in eight dimensions.https://doi.org/10.1007/JHEP01(2025)141D-BranesSuperstrings and Heterotic StringsSupersymmetry Breaking |
| spellingShingle | Yuta Hamada Arata Ishige Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings Journal of High Energy Physics D-Branes Superstrings and Heterotic Strings Supersymmetry Breaking |
| title | Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings |
| title_full | Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings |
| title_fullStr | Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings |
| title_full_unstemmed | Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings |
| title_short | Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings |
| title_sort | investigating 9d 8d non supersymmetric branes and theories from supersymmetric heterotic strings |
| topic | D-Branes Superstrings and Heterotic Strings Supersymmetry Breaking |
| url | https://doi.org/10.1007/JHEP01(2025)141 |
| work_keys_str_mv | AT yutahamada investigating9d8dnonsupersymmetricbranesandtheoriesfromsupersymmetricheteroticstrings AT arataishige investigating9d8dnonsupersymmetricbranesandtheoriesfromsupersymmetricheteroticstrings |