The J=ÃDD¤ Vertex
We employ QCD sum rules to calculate the J=ÃDD¤ form factors and coupling constant by studying the threepointJ=ÃD¤D correlation function. We find that the momentum dependence of the form factor depends onthe off-shell meson. We get a value for the coupling which is in agreement with estimates based...
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| Vydáno v: | Brazilian Journal of Physics |
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| Hlavní autoři: | , , , |
| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
Sociedade Brasileira de Física
2004
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| Témata: | |
| On-line přístup: | https://www.redalyc.org/articulo.oa?id=46400116 |
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