Ultraviolet behaviour in Wess-Zumino model

On the base of Schwinger equations, supersymmetry Ward identities and equal-time commutation relations the ultraviolet asymptotic of propagators is found for the four-dimensional supersymmetric Wess-Zumino model. The obtained asymptotics coincide with the leading log asymptotics that means the existence of negative norm states in the spectrum of the theory