Dynamical spin effects within the pseudo scalar nonet within holographic QCD

Abstract

We investigate the importance of dynamical spin effects in the holographic light-front wavefunctions of the pseudoscalar mesons. We find that these effects are crucial to describe the pion data while they are not necessary to describe the available kaon data. For $\eta -{\eta }^{\prime }$ system, we find that dynamical spin effects are required to describe their transition form factors data.

Comments: 7 pages, 6 figures, Proceedings Contribution to the XIII Quark Confinement and Hadron Spectrum Conference held at Maynooth University, Ireland, from July 31 to August 6, 2018