λϕ 4 theory — Part I. The symmetric phase beyond NNNNNNNNLO
Abstract Perturbation theory of a large class of scalar field theories in d < 4 can be shown to be Borel resummable using arguments based on Lefschetz thimbles. As an example we study in detail the λϕ 4 theory in two dimensions in the Z 2 symmetric phase. We extend the results for the perturbativ...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2018-08-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP08(2018)148 |