English

Holographic QCD model for $N_f=4$

High Energy Physics - Phenomenology 2022-02-02 v1

Abstract

We establish a holographic QCD model for four flavors, where a light scalar field XX and a heavy scalar field HH are introduced, separately. The HH field is responsible for the breaking of SU(Nf=4)SU(N_f=4) to SU(Nf=3)SU(N_f=3). The ground state and its Regge excitation of meson spectra in the light flavor sector and heavy flavor sector as well as the ligh-heavy mesons are well in agreement with the Particle data group (PDG). Due to the additional introduction of the HH field in the model, different Regge slopes for light and heavy mesons can be achieved.

Keywords

Cite

@article{arxiv.2110.08215,
  title  = {Holographic QCD model for $N_f=4$},
  author = {Yidian Chen and Mei Huang},
  journal= {arXiv preprint arXiv:2110.08215},
  year   = {2022}
}