Recent determinations of the πNN coupling constant and deuteron properties

We examine the deuteron properties using the new value for the πNN coupling constant, gπ2/4π=13.3±0.3, which has been obtained in a recent analysis of π±p data and is about 7% smaller than earlier determinations. We find that this value is at variance with the deuteron properties if the strong empirical (Hoehler-Pietarinen) ρ coupling is assumed which, in fact, is used in almost all modern realistic meson-theoretic models for the NN interaction. Within such models, a minimum of 13.9 for gπ2/4π is required, especially for the correct description of the deuteron quadrupole moment