Strong coupling constant of a negative parity nucleon with a pi meson in light-cone QCD sum rules

Date

2017-03-28

Author

Alıyev, Tahmasıb
Barakat, T.
Savcı, Mustafa

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We estimate the strong coupling constant between the negative parity nucleons with pi meson within the lightcone QCD sum rules. A method for eliminating the unwanted contributions coming from the nucleon-nucleon and nucleon-negative parity nucleon transition is presented. It is observed that the value of the strong coupling constant of the negative parity nucleon N* N* pi transition is smaller by about 50% compared to the coupling constant of the positive parity NN pi transition.

Subject Keywords

Hadron-hadron interactions, Hadronic decays, Nuclear forces, Nucleon-nucleon interactions

URI

https://hdl.handle.net/11511/47394

Collections

Department of Physics, Article