Scaling effective Lagrangians in a dense medium

27 May 1991

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 66 (21) , 2720-2723
https://doi.org/10.1103/physrevlett.66.2720

Abstract

By using effective chiral Lagrangians with a suitable incorporation of the scaling property of QCD, we establish the approximate in-medium scaling law,

m_{σ}^{*}

m_{σ}

≊

m_{N}^{*}

m_{N}

≊

m_{ρ}^{*}

m_{ρ}

≊

m_{ω}^{*}

m_{ω}

≊

f_{π}^{*}

f_{π}

. This has a highly nontrivial implication for nuclear processes at and above nuclear-matter density. Some concrete cases are cited in this paper.

Keywords

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