hep-ex/0308061 Authors: I.V. Ajinenko, et al. "Search for light pseudoscalar sgoldstino in K- decays" Abstract A search for the light pseudoscalar sgoldstino production in three body K- decay K- -> pi pi0 P has been performed with the ISTRA+ detector exposed to the 25 GeV negative secondary beam of the U70 proton synchrotron. No signal is seen. Upper limit for the branching ratio Br(K->pipi0P) at 90% confidence level is found to be around 8*10**-6 in the effective mass m(P) range from 0 till 200 MeV, excluding the region near m(pi0) where it degrades to 3*10**-5.