The pion in the graviton soft-wall model: phenomenological applications

Abstract

The holographic graviton soft-wall model, introduced to describe the spectrum of scalar and tensor glueballs, is improved to incorporate the realization of chiral-symmetry as in QCD. Such a goal is achieved by including the longitudinal dynamics of QCD into the scheme. Using the relation between AdS/QCD and Light-Front dynamics, we construct the appropriate wave function for the pion which is used to calculate several pion observables. The comparison of our results with phenomenology is remarkably successful.

arXiv comment23 pages, 15 figures. Acceptet version in THE EUROPEAN PHYSICAL JOURNAL C. References added

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• Probing the chiral and $U(1)$ axial symmetry restoration via meson susceptibilities in holographic QCD
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