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Chiral symmetry and charmonium decays to two pseudoscalars

Bijnens, Johan LU and Jemos, Ilaria LU (2011) In European Physical Journal A. Hadrons and Nuclei 47(11).
Abstract
We apply hard pion Chiral Perturbation Theory to charmonium decays to pi pi, KK and eta eta. We first discuss why we expect to be able to provide results for the chiral logarithms in chi(c0) and chi(c2) decays to two pseudoscalars while for the decays from J/psi, psi(nS) and chi(c1) no simple prediction is possible. The leading chiral logarithm turns out to be absent for chi(c0), chi(c2) -> PP. This result is true for all fully chiral singlet states of spin zero and two.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal A. Hadrons and Nuclei
volume
47
issue
11
publisher
Springer
external identifiers
  • wos:000298047800014
ISSN
1434-6001
DOI
10.1140/epja/i2011-11137-9
language
English
LU publication?
yes
id
33676e67-322c-4c91-855a-57423ff75a91 (old id 2333505)
date added to LUP
2012-02-06 13:22:35
date last changed
2016-04-16 01:26:50
@article{33676e67-322c-4c91-855a-57423ff75a91,
  abstract     = {We apply hard pion Chiral Perturbation Theory to charmonium decays to pi pi, KK and eta eta. We first discuss why we expect to be able to provide results for the chiral logarithms in chi(c0) and chi(c2) decays to two pseudoscalars while for the decays from J/psi, psi(nS) and chi(c1) no simple prediction is possible. The leading chiral logarithm turns out to be absent for chi(c0), chi(c2) -> PP. This result is true for all fully chiral singlet states of spin zero and two.},
  articleno    = {137},
  author       = {Bijnens, Johan and Jemos, Ilaria},
  issn         = {1434-6001},
  language     = {eng},
  number       = {11},
  publisher    = {Springer},
  series       = {European Physical Journal A. Hadrons and Nuclei},
  title        = {Chiral symmetry and charmonium decays to two pseudoscalars},
  url          = {http://dx.doi.org/10.1140/epja/i2011-11137-9},
  volume       = {47},
  year         = {2011},
}