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arXiv · 0911.3996

Influence of Vector Mesons on the f0(600) Decay Width in a Linear Sigma Model with Global Chiral Invariance

Denis Parganlija·Francesco Giacosa·Dirk H. Rischke
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Abstract

We consider a globally invariant chiral Lagrangian that contains vector and axial-vector mesons. We compute the f0(600) decay width into two pions and pion-pion scattering lengths and compare with the corresponding results in which the (axial-)vector degrees of freedom decouple. We show that the role of vector mesons has a great impact on these quantities.

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Denis Parganlija, Francesco Giacosa, Dirk H. Rischke. 2009-11-20. Influence of Vector Mesons on the f0(600) Decay Width in a Linear Sigma Model with Global Chiral Invariance. https://arxiv.org/abs/0911.3996

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