Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-11-25
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, REVTEX, no figures, submitted to Phys. Rev. C
Scientific paper
We point out that the scalar Wick-Cutkosky model (with $\chi^2 \phi$
interaction) used in this study has been known for a long time to be unstable.
However, the numerical results presented in this paper do not show any sign of
this instability which casts some doubt on their reliability. We compare with
the worldline variational approach.
Rosenfelder R.
Schreiber Andreas W.
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