High Energy Theory Group Seminars
Decoding Renormalons from the Bethe Ansatz
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1/1-3 - Aula B (Dipartimento di Fisica e Astronomia - Edificio Marzolo)
1/1-3 - Aula B
Dipartimento di Fisica e Astronomia - Edificio Marzolo
200
Description
Renormalizable QFT has two types of non-perturbative contributions: instantons and renormalons. However, little is known about the latter. In this talk, I will discuss what we can learn about semi-classical expansions by extracting trans-series from the Bethe Ansatz in integrable QFTs. We find finite N results for instantons and renormalons, including previously unknown families of renormalons.