Δ Isobar decay in covariant quark model

2018

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DOI 10.1134/s1547477118010077
Data confidence 85 high
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Abstract

We investigate the strong decay of the isobar in the covariant quark model. The detailed derivation of the relativistic three-quark current with the quantum numbers $${J^P} = \frac{3}{2}^{+}$$ is given. It is shown that this current has a unique form. The decay width is calculated by fitting the free parameter of the model. The behavior of the strong form factor GΔpπ(Q2)for spacelike squared transferred pion momentum is obtained.