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Transition Form Factors of Pseudoscalar Mesons and the Contribution of the Gluon Anomaly.
- Source :
-
Physics of Atomic Nuclei . Dec2019, Vol. 82 Issue 12, p1616-1620. 5p. 2 Charts, 5 Graphs. - Publication Year :
- 2019
-
Abstract
- The expressions for the transition form factors (TFFs) of pseudoscalar mesons are derived in the context of the anomaly sum rule approach based on the dispersion representation of the axial anomaly and hypothesis of the global quark-hadron duality. The obtained solutions take into account the π0-η-η′ mixing and the contribution of the gluon anomaly. It is shown that this method allows one to describe the TFFs for spacelike and timelike photon virtualities. The contribution of the gluon anomaly is estimated. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MESONS
*GLUONS
*PHOTONS
*MIXING
*DISPERSION (Chemistry)
Subjects
Details
- Language :
- English
- ISSN :
- 10637788
- Volume :
- 82
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Physics of Atomic Nuclei
- Publication Type :
- Academic Journal
- Accession number :
- 142424792
- Full Text :
- https://doi.org/10.1134/S1063778819120159