Three-pseudoscalar photon interactions in chiral perturbation theory
(1990) In Physics Letters B 237(3-4). p.488-494- Abstract
We have calculated the next to leading corrections to the processes γπ- → π0π- and η → π+π-γ in chiral perturbation theory. The loop diagrams are divergent, requiring the contributions from the O(p6) lagrangian. The finite parts of the coefficients of the O(p6) terms are calculated assuming their saturation by the vector meson contribution. These corrections improve the agreement between the theoretical predictions and the experimental data.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/17ac4895-131e-4ecc-a03e-6a966a4e2a36
- author
- Bijnens, Johan
LU
; Bramon, Albert and Cornet, Fernando
- publishing date
- 1990-03-22
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters B
- volume
- 237
- issue
- 3-4
- pages
- 7 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:2542418015
- ISSN
- 0370-2693
- DOI
- 10.1016/0370-2693(90)91212-T
- language
- English
- LU publication?
- no
- id
- 17ac4895-131e-4ecc-a03e-6a966a4e2a36
- date added to LUP
- 2019-05-03 09:41:43
- date last changed
- 2021-03-21 04:48:41
@article{17ac4895-131e-4ecc-a03e-6a966a4e2a36, abstract = {{<p>We have calculated the next to leading corrections to the processes γπ<sup>-</sup> → π<sup>0</sup>π<sup>-</sup> and η → π<sup>+</sup>π<sup>-</sup>γ in chiral perturbation theory. The loop diagrams are divergent, requiring the contributions from the O(p<sup>6</sup>) lagrangian. The finite parts of the coefficients of the O(p<sup>6</sup>) terms are calculated assuming their saturation by the vector meson contribution. These corrections improve the agreement between the theoretical predictions and the experimental data.</p>}}, author = {{Bijnens, Johan and Bramon, Albert and Cornet, Fernando}}, issn = {{0370-2693}}, language = {{eng}}, month = {{03}}, number = {{3-4}}, pages = {{488--494}}, publisher = {{Elsevier}}, series = {{Physics Letters B}}, title = {{Three-pseudoscalar photon interactions in chiral perturbation theory}}, url = {{http://dx.doi.org/10.1016/0370-2693(90)91212-T}}, doi = {{10.1016/0370-2693(90)91212-T}}, volume = {{237}}, year = {{1990}}, }