Meson mass modification in strange hadronic matter

Abstract

We investigate in stable strange hadronic matter (SHM) the modification of the masses of the scalar ($\sigma$, ${\sigma }^{\ast }$) and the vector ($\omega$, $\varphi$) mesons. The baryon ground state is treated in the relativistic Hartree approximation in the nonlinear $\sigma$-$\omega$ and linear ${\sigma }^{\ast }$-$\varphi$ model. In stable SHM, the masses of all the mesons reveal considerable reduction due to large vacuum polarization contribution from the hyperons and small density dependent effects caused by larger binding.

15 pages, Revtex, version to appear in Phys. Lett. B

References in corpus (1)

• Sigma and omega meson propagation in a dense nuclear medium

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• Collective modes in strange and isospin asymmetric hadronic matter