Vacuum Nucleon Loops and Naturalness
arXiv:nucl-th/9611046 · doi:10.1016/S0375-9474(97)00062-6
Abstract
Phenomenological studies support the applicability of naturalness and naive dimensional analysis to hadronic effective lagrangians for nuclei. However, one-baryon-loop vacuum contributions in renormalizable models give rise to unnatural coefficients, which indicates that the quantum vacuum is not described adequately. The effective lagrangian framework accommodates a more general characterization of vacuum contributions without reference to a Dirac sea of nucleons.
15 pages, REVTeX 3.0 with epsf.sty, plus 2 figures. Reference added
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