Odd-Derivative Couplings in Heterotic Theory
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916345626492928 |
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| author | Garousi, Mohammad R. |
| author_facet | Garousi, Mohammad R. |
| contents | In this paper, our focus is on exploring the gauge-invariant basis for bosonic couplings within the framework of heterotic string theories, specifically examining 3-, 5-, and 7-derivative terms. We thoroughly analyze the invariance of these couplings under T-duality transformations and make a notable observation: the T-duality constraint enforces the vanishing of these couplings. We speculate that this result likely holds true for all higher odd-derivative couplings as well. This is unlike the result in type I superstring theory, where, for example, the couplings of 5 Yang-Mills field strengths are non-zero. The vanishing of couplings is consistent with the $O(d,d+16)$ symmetry of the cosmological reduction of the effective action. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_11954 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Odd-Derivative Couplings in Heterotic Theory Garousi, Mohammad R. High Energy Physics - Theory In this paper, our focus is on exploring the gauge-invariant basis for bosonic couplings within the framework of heterotic string theories, specifically examining 3-, 5-, and 7-derivative terms. We thoroughly analyze the invariance of these couplings under T-duality transformations and make a notable observation: the T-duality constraint enforces the vanishing of these couplings. We speculate that this result likely holds true for all higher odd-derivative couplings as well. This is unlike the result in type I superstring theory, where, for example, the couplings of 5 Yang-Mills field strengths are non-zero. The vanishing of couplings is consistent with the $O(d,d+16)$ symmetry of the cosmological reduction of the effective action. |
| title | Odd-Derivative Couplings in Heterotic Theory |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2404.11954 |