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arXiv · hep-ph/9407327

Momentum Dependent Vertices $σγγ$, $σργ$ and $σρρ$ : The NJL Scalar Hidden by Chiral Symmetry

B. Bajc·A. H. Blin·B. Hiller·M. C. Nemes·M. Rosina
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Abstract

We calculate the momentum dependence of three particle vertices $σγγ$, $σργ$ and $σρρ$ in the context of a Nambu Jona Lasinio type model. We show how they influence the processes $γγ\rightarrow σ\rightarrow ππ$, $ρ\rightarrow γσ$ and $γγ\rightarrow ρρ$ and how chiral symmetry shadows the presence of the $σ$.

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B. Bajc, A. H. Blin, B. Hiller, M. C. Nemes, M. Rosina. 1994-07-19. Momentum Dependent Vertices $σγγ$, $σργ$ and $σρρ$ : The NJL Scalar Hidden by Chiral Symmetry. https://doi.org/10.1007/bf01289587

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