Vacuum Nucleon Loops and Naturalness

Details Vacuum Nucleon Loops and Naturalness Vacuum Nucleon Loops and Naturalness

1996-11-23

arxiv.org/abs/nucl-th/9611046v2

Nucl.Phys. A618 (1997) 446-454

Physics

Nuclear Physics

Nuclear Theory

15 pages, REVTeX 3.0 with epsf.sty, plus 2 figures. Reference added

Scientific paper

10.1016/S0375-9474(97)00062-6

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.

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