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eta to 3 pi at Two Loops In Chiral Perturbation Theoryeta to 3 pi at Two Loops In Chiral Perturbation Theory

Bijnens, Johan LU orcid and Ghorbani, Karim LU (2007) In Journal of High Energy Physics 0711.
Abstract
We calculate the decay eta to3 pi at next-to-next-to-leading order or order p<sup>6</sup> in Chiral Perturbation Theory. The corrections are somewhat larger than was indicated by dispersive estimates. We present numerical results for the Dalitz plot parameters, the ratio r of the neutral to charged decay and the total decay rate. In addition we derive an inequality between the slope parameters of the charged and neutral decay. The experimental charged decay rate leads to central values for the isospin breaking quantities R=42.2 and Q=23.2.
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author
and
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publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of High Energy Physics
volume
0711
article number
030
publisher
Springer
external identifiers
  • wos:000252243700030
  • scopus:36849068538
ISSN
1029-8479
DOI
10.1088/1126-6708/2007/11/030
language
English
LU publication?
yes
id
173beeed-c14e-435d-acfb-8e49b927852a (old id 792238)
date added to LUP
2016-04-04 08:47:46
date last changed
2024-01-27 05:20:55
@article{173beeed-c14e-435d-acfb-8e49b927852a,
  abstract     = {{We calculate the decay eta to3 pi at next-to-next-to-leading order or order p&lt;sup&gt;6&lt;/sup&gt; in Chiral Perturbation Theory. The corrections are somewhat larger than was indicated by dispersive estimates. We present numerical results for the Dalitz plot parameters, the ratio r of the neutral to charged decay and the total decay rate. In addition we derive an inequality between the slope parameters of the charged and neutral decay. The experimental charged decay rate leads to central values for the isospin breaking quantities R=42.2 and Q=23.2.}},
  author       = {{Bijnens, Johan and Ghorbani, Karim}},
  issn         = {{1029-8479}},
  language     = {{eng}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{eta to 3 pi at Two Loops In Chiral Perturbation Theoryeta to 3 pi at Two Loops In Chiral Perturbation Theory}},
  url          = {{http://dx.doi.org/10.1088/1126-6708/2007/11/030}},
  doi          = {{10.1088/1126-6708/2007/11/030}},
  volume       = {{0711}},
  year         = {{2007}},
}