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

2019/07/18 by T. M. Aliev, T. Barakat, K. Şimşek +1
Physics and Astronomy · #Atomic physics #BETA (programming language) #Current (fluid) #Dipole #Form factor (electronics) #Isoscalar #Isovector #Mathematical physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Sum rule in quantum mechanics #Thermodynamics #hep-ph

paper · pdf · doi:10.1103/physrevd.100.054030

published as Phys. Rev. D 100, 054030 (2019)

arxiv created 2019/07/18 · openalex created_date 2019/07/23 · openalex publication_date 2019/09/24 · arxiv updated 2019/10/02 · openalex updated_date 2026/08/05

Abstract

The form-factors for the transition N*(1535)\ensuremath→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 \ensuremathβ. The numerical calculations show that the form factor GT(S) at all values of Q2 and \ensuremathβ for both sets of values of the parameters are smaller than that one for GA(S) and GS(S).

Citations