Johan Bijnens
Professor, Deputy Head of Division
The three-pion K-matrix at NLO in ChPT
Author
Summary, in English
The three-particle K-matrix, Kdf,3, is a scheme-dependent quantity that parametrizes short-range three-particle interactions in the relativistic-field-theory three-particle finite-volume formalism. In this work, we compute its value for systems of three pions in all isospin channels through next-to-leading order in Chiral Perturbation Theory, generalizing previous work done at maximum isospin. We obtain analytic expressions through quadratic order (or cubic order, in the case of zero isospin) in the expansion about the three-pion threshold.
Department/s
- Particle and nuclear physics
Publishing year
2024-03
Language
English
Publication/Series
Journal of High Energy Physics
Volume
2024
Issue
3
Document type
Journal article
Publisher
Springer
Topic
- Algebra and Logic
Keywords
- Chiral Lagrangian
- Hadronic Spectroscopy
- Lattice QCD
- Structure and Interactions
Status
Published
ISBN/ISSN/Other
- ISSN: 1029-8479