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Chiral perturbation theory for η→π0γγ

Ametller, Ll ; Bijnens, J. LU orcid ; Bramon, A. and Cornet, F. (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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author
; ; and
publishing date
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}},
}