Introduction

The decay $K \rightarrow e \nu \pi ^{0}$(K$_{e3}$) is known to be a promissing one to search for an admixture of scalar (S) or tensor (T) interactions to the Standard Model (SM) V-A . This topic has been attracting significant interest during resent years and moreover some previous experiments with charged and neutral kaon beams have reported indications for some anomalous S and T signals [1], [2]. On the other hand, resent KEK [3,4] experiment with stopped $K^{+}$ beam has reported negative results of the searches.

In our analysis we present new search for S and T couplings based on the statistics of about 130K Ke3 events. Another result of our study is the measurement of the V-A $f_{+}(t)$ formfactor slope $\lambda_{+}$.