Effects of Dirac sea polarization on hadronic properties - A chiral SU(3) approach
A. Mishra, K. Balazs, D. Zschiesche, S. Schramm, H. Stöcker, W. Greiner
Abstract
The effect of vacuum fluctuations on the in-medium hadronic properties is investigated using a chiral SU(3) model in the nonlinear realization. The effect of the baryon Dirac sea is seen to modify hadronic properties and in contrast to a calculation in mean field approximation it is seen to give rise to a significant drop of the vector meson masses in hot and dense matter. This effect is taken into account through the summation of baryonic tadpole diagrams in the relativistic Hartree approximation (RHA), where the baryon self energy is modified due to interactions with both the non-strange (σ) and the strange (ζ) scalar fields.
Create a lesson
Related papers
Partial-wave decomposition of the p--5ΛHe correlation function: a femtoscopic route to the 6ΛLi resonance
Dongsheng Li, Yifei Zhang
Density-driven α-particle clustering in neutron-rich oxygen isotopes
M. Davies, E. Yüksel, J. -P. Ebran et al.
Multi-phonon wobbling excitations as a probe for dynamical quasiparticle alignment
R. Budaca, A. I. Budaca
Interacting Boson System at Finite Temperatures: The treatment of the lattice QCD results
D. Anchishkin, V. Gnatovskyy, D. Zhuravel et al.
Spurious center-of-mass mode as an S-matrix pole within the Jost-random-phase approximation
Kazuhito Mizuyama
Quantum computing for high energy nuclear physics
João Barata