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

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2017-03-28

Author

Alıyev, Tahmasıb
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

Journal

PHYSICAL REVIEW C

DOI

https://doi.org/10.1103/physrevc.95.035210

Collections

Department of Physics, Article

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Strong Coupling Constants of Negative Parity Heavy Baryons with pi and K Mesons Alıyev, Tahmasıb; Bilmiş, Selçuk; Savcı, Mustafa (2017-01-01) The strong coupling constants of negative parity heavy baryons belonging to sextet and antitriplet representations of SUf(3) with light pi and K mesons are estimated within the light cone QCD sum rules. It is observed that each class of the sextet-sextet, sextet-antitriplet, and antitriplet-antitriplet transitions can be described by only one corresponding function. The pollution arising from the positive to positive, positive to negative, and negative to positive parity baryons transitions is eliminated by...

Citation Formats

T. Alıyev and M. Savcı, “Strong coupling constant of a negative parity nucleon with a pi meson in light-cone QCD sum rules,” PHYSICAL REVIEW C, pp. 0–0, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47394.