/ 98 04 28 1 v 1 1 3 A pr 1 99 8 SU ( 3 ) Baryon Chiral Perturbation Theory and Long Distance Regularization ∗
نویسندگان
چکیده
The use of SU(3) chiral perturbation theory in the analysis of low energy meson-baryon interactions is discussed. It is emphasized that short distance effects, arising from propagation of Goldstone bosons over distances smaller than a typical hadronic size, are modeldependent and lead to a lack of convergence in the SU(3) chiral expansion when regularized dimensionally. In this paper we demonstrate how to remove such effects in a chirally consistent fashion by use of a cutoff and demonstrate that such removal ameliorates convergence problems which arise from large loop effects. Research supported in part by the National Science Foundation and the Deutsche Forschungsgemeinschaft
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تاریخ انتشار 1999