Abstract
The observed q2-dependence of the ηγγ and ππγ e.m. vertices is described in terms of VMD and simple quark-loop diagrams. The dual character of these two approaches (involving, respectively, qq-bound state or free quark propagators) is unambiguously established. © 1981.
Original language | English |
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Pages (from-to) | 311-314 |
Journal | Physics Letters B |
Volume | 104 |
Issue number | 4 |
DOIs | |
Publication status | Published - 3 Sep 1981 |