The three-pion K-matrix at NLO in ChPT
(2024) In Journal of High Energy Physics 2024(3).- Abstract
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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/959c1365-0c7c-49ec-96b5-98b0f0adfe85
- author
- Baeza-Ballesteros, Jorge ; Bijnens, Johan LU ; Husek, Tomáš ; Romero-López, Fernando ; Sharpe, Stephen R. and Sjö, Mattias LU
- organization
- publishing date
- 2024-03
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Chiral Lagrangian, Hadronic Spectroscopy, Lattice QCD, Structure and Interactions
- in
- Journal of High Energy Physics
- volume
- 2024
- issue
- 3
- article number
- 48
- publisher
- Springer
- external identifiers
-
- scopus:85187417927
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP03(2024)048
- language
- English
- LU publication?
- yes
- id
- 959c1365-0c7c-49ec-96b5-98b0f0adfe85
- date added to LUP
- 2024-04-10 11:39:53
- date last changed
- 2024-04-10 11:39:53
@article{959c1365-0c7c-49ec-96b5-98b0f0adfe85, abstract = {{<p>The three-particle K-matrix, K<sub>df,3</sub>, 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.</p>}}, author = {{Baeza-Ballesteros, Jorge and Bijnens, Johan and Husek, Tomáš and Romero-López, Fernando and Sharpe, Stephen R. and Sjö, Mattias}}, issn = {{1029-8479}}, keywords = {{Chiral Lagrangian; Hadronic Spectroscopy; Lattice QCD; Structure and Interactions}}, language = {{eng}}, number = {{3}}, publisher = {{Springer}}, series = {{Journal of High Energy Physics}}, title = {{The three-pion K-matrix at NLO in ChPT}}, url = {{http://dx.doi.org/10.1007/JHEP03(2024)048}}, doi = {{10.1007/JHEP03(2024)048}}, volume = {{2024}}, year = {{2024}}, }