Renormalization of NN Chiral EFT, my personal mixed feelings
D.R. Entem

TL;DR
This paper reviews the history and ongoing challenges of renormalization in nucleon systems within Chiral Effective Field Theory, reflecting on three decades of research and personal insights.
Contribution
It provides a personal perspective on the unresolved renormalization issues in NN Chiral EFT after thirty years of development.
Findings
Renormalization remains an open problem in NN Chiral EFT.
Personal insights highlight ongoing debates and future directions.
Historical overview of Chiral EFT development over three decades.
Abstract
We are celebrating thirty-years from the seminal papers from Weinberg proposing to use the rules of Chiral Perturbation Theory to nucleon systems. His proposal was to build an Effective Field Theory (EFT) with Chiral symmetry as a key property. A big effort on this line have been made during these three decades, however the issue of renormalization of the theory is not settled. I will briefly review my path on this issue and give my personal view.
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Taxonomy
TopicsNuclear physics research studies · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies
