Multiparticle Contributions to the Celestial OPE
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916849281662976 |
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| author | Guevara, Alfredo Hu, Yangrui Pasterski, Sabrina |
| author_facet | Guevara, Alfredo Hu, Yangrui Pasterski, Sabrina |
| contents | We start by defining two-particle operators that appear in celestial CFT. We then show how to compute their OPE coefficients with the known single-particle operators at tree level from multiparticle factorization channels, focusing on the leading contribution involving the two-particle states. These factorization channels only give us single-particle exchanges. To extract the multiparticle exchanges, we look at the $\overline{\rm MHV}$ gluon amplitudes and show how non-factorization channels contribute to two-particle terms in the single-helicity sector. This is a first step towards systematically computing the full celestial OPE. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_18798 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Multiparticle Contributions to the Celestial OPE Guevara, Alfredo Hu, Yangrui Pasterski, Sabrina High Energy Physics - Theory We start by defining two-particle operators that appear in celestial CFT. We then show how to compute their OPE coefficients with the known single-particle operators at tree level from multiparticle factorization channels, focusing on the leading contribution involving the two-particle states. These factorization channels only give us single-particle exchanges. To extract the multiparticle exchanges, we look at the $\overline{\rm MHV}$ gluon amplitudes and show how non-factorization channels contribute to two-particle terms in the single-helicity sector. This is a first step towards systematically computing the full celestial OPE. |
| title | Multiparticle Contributions to the Celestial OPE |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2402.18798 |