Exact summation of leading logs around T T ¯ $$ T\overline{T} $$ deformation of O(N + 1)-symmetric 2D QFTs
Abstract We consider a general (beyond T T ¯ $$ T\overline{T} $$ ) deformation of the 2D O(N + 1) σ-model by the irrelevant dimension-four operators. The theory deformed in this most general way is not integrable, and the S-matrix loses its factorization properties. We perform the all-order summatio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP05(2021)266 |
| Summary: | Abstract We consider a general (beyond T T ¯ $$ T\overline{T} $$ ) deformation of the 2D O(N + 1) σ-model by the irrelevant dimension-four operators. The theory deformed in this most general way is not integrable, and the S-matrix loses its factorization properties. We perform the all-order summation of the leading infrared logs for the 2 → 2 scattering amplitude and provide the exact result for the 2 → 2 S-matrix in the leading logarithmic approximation. These results can provide us with new insights into the properties of the theories deformed by irrelevant operators more general than the T T ¯ $$ T\overline{T} $$ deformation. |
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| ISSN: | 1029-8479 |