Manifest Moebius invariance of massive tree-level three-point amplitudes in pure spinor superspace
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866911558607568896 |
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| author | Huang, Chen Mafra, Carlos R. Tao, Yi-Xiao |
| author_facet | Huang, Chen Mafra, Carlos R. Tao, Yi-Xiao |
| contents | Using BRST cohomology properties in pure spinor superspace and identities for OPE brackets of non-free fields, we obtain a new compact nested-bracket representation of massive tree-level three-point open-string amplitudes in which Moebius invariance is manifest. Explicit superspace calculations for amplitudes with level-one massive states confirm this finding, and we derive new BRST recurrence relations among three-point numerators to extend the result to arbitrary mass levels. This provides a manifestly Moebius-invariant expression for massive three-point amplitudes in the pure spinor formalism. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_00141 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Manifest Moebius invariance of massive tree-level three-point amplitudes in pure spinor superspace Huang, Chen Mafra, Carlos R. Tao, Yi-Xiao High Energy Physics - Theory Using BRST cohomology properties in pure spinor superspace and identities for OPE brackets of non-free fields, we obtain a new compact nested-bracket representation of massive tree-level three-point open-string amplitudes in which Moebius invariance is manifest. Explicit superspace calculations for amplitudes with level-one massive states confirm this finding, and we derive new BRST recurrence relations among three-point numerators to extend the result to arbitrary mass levels. This provides a manifestly Moebius-invariant expression for massive three-point amplitudes in the pure spinor formalism. |
| title | Manifest Moebius invariance of massive tree-level three-point amplitudes in pure spinor superspace |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2604.00141 |