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Strong coupling constant of a negative parity nucleon with a pi meson in light-cone QCD sum rules
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Date
2017-03-28
Author
Alıyev, Tahmasıb
Barakat, T.
Savcı, Mustafa
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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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
Journal
PHYSICAL REVIEW C
DOI
https://doi.org/10.1103/physrevc.95.035210
Collections
Department of Physics, Article