Chiral symmetry and charmonium decays to two pseudoscalars
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2333505
- author
- Bijnens, Johan LU and Jemos, Ilaria LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal A. Hadrons and Nuclei
- volume
- 47
- issue
- 11
- article number
- 137
- 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
- 2016-04-01 14:35:52
- date last changed
- 2019-03-08 03:00:50
@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.}}, 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}}, doi = {{10.1140/epja/i2011-11137-9}}, volume = {{47}}, year = {{2011}}, }