Feynman integrals from positivity constraints
Abstract We explore inequality constraints as a new tool for numerically evaluating Feynman integrals. A convergent Feynman integral is non-negative if the integrand is non-negative in either loop momentum space or Feynman parameter space. Applying various identities, all such integrals can be reduc...
| Published in: | Journal of High Energy Physics |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-09-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP09(2023)042 |