η mesons in hot magnetized nuclear matter

Jan 30, 2021
34 pages
Published in:
  • Chin.Phys.C 46 (2022) 2, 024109
  • Published: Feb 1, 2022
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Citations per year

20202021202202
Abstract: (IOP)
interactions are investigated in hot magnetized asymmetric nuclear matter using the chiral SU(3) model and chiral perturbation theory (ChPT). In the chiral model, the in-medium properties of η-mesons are calculated using medium modified scalar densities under the influence of an external magnetic field. Further, in a combined chiral model and ChPT approach, off-shell contributions of the interactions are evaluated from the ChPT effective Lagrangian, and the in-medium effect of scalar densities are incorporated from the chiral SU(3) model. We find that the magnetic field has a significant effect on the in-medium mass and optical potential of η mesons, and we observe a deeper mass-shift in the combined chiral model and ChPT approach than in the solo chiral SU(3) model. In both approaches, no additional mass-shift is observed due to the uncharged nature of η mesons in the presence of a magnetic field.
Note:
  • 34 pages, 11 figures
  • eta nucleon: interaction
  • model: chiral
  • density: scalar
  • perturbation theory: chiral
  • magnetic field: effect
  • magnetic field: external field
  • nuclear matter: asymmetry
  • potential: optical
  • SU(3)
  • off-shell