N ( 1535 ) → N transition form-factors due to the axial current

The form-factors for the transition N*(1535)→N induced by isovector and isoscalar axial currents within the framework of light cone QCD sum rules by using the most general form of the interpolating current are calculated. In numerical calculations, we use two sets of values of input parameters. It i...

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Veröffentlicht in:Physical review. D 2019-09, Vol.100 (5), p.1, Article 054030
Hauptverfasser: Aliev, T. M., Barakat, T., Şimşek, K.
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Sprache:eng
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Zusammenfassung:The form-factors for the transition N*(1535)→N induced by isovector and isoscalar axial currents within the framework of light cone QCD sum rules by using the most general form of the interpolating current are calculated. In numerical calculations, we use two sets of values of input parameters. It is observed that the Q2 dependence of the form-factor GA can be described by the dipole form. Moreover, the form-factors GP(S) are found to be highly sensitive to the variations in the auxiliary parameter β. The numerical calculations show that the form factor GT(S) at all values of Q2 and β for both sets of values of the parameters are smaller than that one for GA(S) and GS(S).
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.100.054030