Title
ELECTROMAGNETIC EFFECTS IN PSI'-]J-PSI+PI-O AND QUARK MASSES
Publication Date
1985
Journal or Book Title
PHYSICS LETTERS B
Abstract
We investigate the contribution of electromagnetism to the decay ψ′ → J/ψ + π0, and find it to be small compared to the effect of quark masses, calculated via the axial anomaly. The decay rate is then a reliable measure of quark masses, and we extract (md−mu)/ms = 0.033±0.005.
Pages
401-403
Volume
164
Issue
4-6
Recommended Citation
Donoghue, JF and TUAN, SF, "ELECTROMAGNETIC EFFECTS IN PSI'-]J-PSI+PI-O AND QUARK MASSES" (1985). PHYSICS LETTERS B. 193.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/193
COinS
Comments
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