English

Vector $K^{*}$ mesons in external magnetic field from SU(3) gluodynamics

High Energy Physics - Lattice 2024-06-25 v2

Abstract

We explore the ground state energies of the neutral and charged vector KK^{*} mesons in the external abelian magnetic field of QCD scale using overlap fermions. We attempt to calculate the magnetic moment and the magnetic dipole polarizability of the K0K^{*0} and Kˉ0\bar{K}^{*0} mesons and investigate their dependence on the ratio of the strange quark mass to the light quark mass. It is found that the ground state energy and the magnetic dipole polarizability depends on the meson spin projection on the magnetic field axis. This leads to the appearance of dileptonic asymmetry, which can be characterized by the tensor polarizability estimated for the K0K^{*0} mesons. We obtain that the gg-factor of the vector K±K^{*\pm} mesons depends on the ms/mum_s/m_u value. Also we do not observe any evidence of the tachyon mode existence for the strange vector mesons.

Keywords

Cite

@article{arxiv.2405.02600,
  title  = {Vector $K^{*}$ mesons in external magnetic field from SU(3) gluodynamics},
  author = {E. V. Luschevskaya and O. V. Teryaev and E. A. Dorenskaya},
  journal= {arXiv preprint arXiv:2405.02600},
  year   = {2024}
}

Comments

14 pages, 9 figures

R2 v1 2026-06-28T16:16:31.648Z