Δ Isobar decay in covariant quark model

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 = 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 t...

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Bibliographic Details
Published inPhysics of particles and nuclei letters Vol. 15; no. 1; pp. 1 - 11
Main Authors Ivanov, M. A., Nurbakova, G., Tyulemissov, Zh
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2018
Springer Nature B.V
Subjects
Decay
Form factors
Particle and Nuclear Physics
Physics
Physics and Astronomy
Physics of Elementary Particles and Atomic Nuclei. Theory
Quantum numbers
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Summary: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 = 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 G Δ pπ ( Q 2 )for spacelike squared transferred pion momentum is obtained.
ISSN:1547-4771
1531-8567
DOI:10.1134/S1547477118010077