The anomalous Lagrangian in ChPT at NNLO
Bijnens, Johan LU
; Hermansson-Truedsson, Nils
LU
and Ruiz-Vidal, Joan
LU
(2024)
2023 European Physical Society Conference on High Energy Physics, EPS-HEP 2023
In Proceedings of Science
449.
- Abstract
The anomalous Lagrangian in mesonic Chiral Perturbation Theory, of odd intrinsic parity, is determined to next-to-next-to-leading order thereby completing the order p8 Lagrangian. A schematic view of its construction with the MINIBAR package for Mathematica is presented and the final operator count is discussed for a general number of light quark flavours as well as for the physical cases N f = 2, 3. The number of operators in our explicit construction of the Lagrangian basis is consistent with the number derived using the Hilbert series in the literature.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/063cf276-3474-4f18-9be4-47da5a112920
- author
- Bijnens, Johan
LU
; Hermansson-Truedsson, Nils
LU
and Ruiz-Vidal, Joan
LU
- organization
- publishing date
- 2024-03-21
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings of Science
- series title
- Proceedings of Science
- volume
- 449
- conference name
- 2023 European Physical Society Conference on High Energy Physics, EPS-HEP 2023
- conference location
- Hamburg, Germany
- conference dates
- 2023-08-21 - 2023-08-25
- external identifiers
-
- scopus:85189246686
- ISSN
- 1824-8039
- language
- English
- LU publication?
- yes
- id
- 063cf276-3474-4f18-9be4-47da5a112920
- alternative location
- https://pos.sissa.it/449/509/pdf
- date added to LUP
- 2024-04-16 14:38:14
- date last changed
- 2024-04-16 14:39:25
@inproceedings{063cf276-3474-4f18-9be4-47da5a112920,
abstract = {{<p>The anomalous Lagrangian in mesonic Chiral Perturbation Theory, of odd intrinsic parity, is determined to next-to-next-to-leading order thereby completing the order p<sup>8</sup> Lagrangian. A schematic view of its construction with the MINIBAR package for Mathematica is presented and the final operator count is discussed for a general number of light quark flavours as well as for the physical cases N <sub>f</sub> = 2, 3. The number of operators in our explicit construction of the Lagrangian basis is consistent with the number derived using the Hilbert series in the literature.</p>}},
author = {{Bijnens, Johan and Hermansson-Truedsson, Nils and Ruiz-Vidal, Joan}},
booktitle = {{Proceedings of Science}},
issn = {{1824-8039}},
language = {{eng}},
month = {{03}},
series = {{Proceedings of Science}},
title = {{The anomalous Lagrangian in ChPT at NNLO}},
url = {{https://pos.sissa.it/449/509/pdf}},
volume = {{449}},
year = {{2024}},
}