Dark Photons and Gravitino Like Particles: Complete EFT Operator Basis
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866929651173031936 |
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| author | Dong, Ziyu Ma, Teng Yang, Chengjie Zhou, Zizheng |
| author_facet | Dong, Ziyu Ma, Teng Yang, Chengjie Zhou, Zizheng |
| contents | We present a more efficient method for constructing the complete EFT operator basis for particles of any mass and spin, based on on-shell method and Young tableaux. By classifying the amplitude bases according to the polarization configurations of massive particles and using their high-energy limit, our approach can construct EFT basis in a straightforward way, without need of auxiliary fields and tedious basis decomposition. Based on this improved method, we develop a Mathematica code that can automatically construct the EFT basis for particles of any spin. As applications, the EFT bases up to d=8 are explicitly constructed for dark photons and, for the first time, for spin-3/2 gravitino like particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_20096 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dark Photons and Gravitino Like Particles: Complete EFT Operator Basis Dong, Ziyu Ma, Teng Yang, Chengjie Zhou, Zizheng High Energy Physics - Phenomenology High Energy Physics - Theory We present a more efficient method for constructing the complete EFT operator basis for particles of any mass and spin, based on on-shell method and Young tableaux. By classifying the amplitude bases according to the polarization configurations of massive particles and using their high-energy limit, our approach can construct EFT basis in a straightforward way, without need of auxiliary fields and tedious basis decomposition. Based on this improved method, we develop a Mathematica code that can automatically construct the EFT basis for particles of any spin. As applications, the EFT bases up to d=8 are explicitly constructed for dark photons and, for the first time, for spin-3/2 gravitino like particles. |
| title | Dark Photons and Gravitino Like Particles: Complete EFT Operator Basis |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2412.20096 |