The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Johan Bijnens in front of his whiteboard

Johan Bijnens

Professor, Deputy Head of Division

Johan Bijnens in front of his whiteboard

The three-pion K-matrix at NLO in ChPT

Author

  • Jorge Baeza-Ballesteros
  • Johan Bijnens
  • Tomáš Husek
  • Fernando Romero-López
  • Stephen R. Sharpe
  • Mattias Sjö

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