Chiral perturbation theory for η→π0γγ
(1992) In Physics Letters B 276(1-2). p.185-190- Abstract
The η→π0γγ decay amplitude is discussed in the general context of chiral perturbation theory assuming that the low-energy constants (counterterms) are saturated by the known meson resonances. The suppression of the lowest order contributions is understood in physical terms. A reasonable agreement with the experimental decay width is achieved.
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https://lup.lub.lu.se/record/8ef323c3-cb94-4d89-ba3a-866df47cbcb4
- author
- Ametller, Ll ; Bijnens, J. LU ; Bramon, A. and Cornet, F.
- publishing date
- 1992-02-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters B
- volume
- 276
- issue
- 1-2
- pages
- 6 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0001528382
- ISSN
- 0370-2693
- DOI
- 10.1016/0370-2693(92)90561-H
- language
- English
- LU publication?
- no
- id
- 8ef323c3-cb94-4d89-ba3a-866df47cbcb4
- date added to LUP
- 2019-05-03 09:35:25
- date last changed
- 2021-03-21 05:25:03
@article{8ef323c3-cb94-4d89-ba3a-866df47cbcb4, abstract = {{<p>The η→π<sup>0</sup>γγ decay amplitude is discussed in the general context of chiral perturbation theory assuming that the low-energy constants (counterterms) are saturated by the known meson resonances. The suppression of the lowest order contributions is understood in physical terms. A reasonable agreement with the experimental decay width is achieved.</p>}}, author = {{Ametller, Ll and Bijnens, J. and Bramon, A. and Cornet, F.}}, issn = {{0370-2693}}, language = {{eng}}, month = {{02}}, number = {{1-2}}, pages = {{185--190}}, publisher = {{Elsevier}}, series = {{Physics Letters B}}, title = {{Chiral perturbation theory for η→π<sup>0</sup>γγ}}, url = {{http://dx.doi.org/10.1016/0370-2693(92)90561-H}}, doi = {{10.1016/0370-2693(92)90561-H}}, volume = {{276}}, year = {{1992}}, }