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

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

2009-11-20

arxiv.org/abs/0911.3996v1

Physics

Nuclear Physics

Nuclear Theory

Presented by D. Parganlija at Excited QCD, 8-14 February 2009, in Zakopane (Poland); 6 pages, 2 figures

Scientific paper

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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