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Chiral Symmetry and N*(1440) -> N pi pi Decay

H. Kamano·M. Morishita·M. Arima
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Abstract

The N*(1440) -> N pi pi decay is studied by making use of the chiral reduction formula. This formula suggests a scalar-isoscalar pion-baryon contact interaction which is absent in the recent study of Hern{á}ndez et al. The contact interaction is introduced into their model, and is found to be necessary for the simultaneous description of g_{RN pi pi} and the pi-pi and pi-N invariant mass distributions.

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H. Kamano, M. Morishita, M. Arima. 2004-12-09. Chiral Symmetry and N*(1440) -> N pi pi Decay. https://doi.org/10.1103/physrevc.71.045201

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