Search for a ΔΔ(1236) component of the deuteron

The dp → nnpπ+, dp → ppnπ0 and dp → pppπ- reactions at 3.33 GeV/c deuteron momentum on the proton target were studied in order to search for a ΔΔ configuration in the deuteron. The frequent backward emission of the (pπ+), (nπo) and (pπ−) systems in the deuteron rest frame was observed. The origin of the effect was analysed from the point of view of a possible ΔΔ admixture in the deuteron wave function. Some other sources which may contribute to the signal are indicated.