Search for Light Photino in Neutral Pion Decay

摘要

It is shown that the branching ratios for the decays pi /sup 0/ -> gamma -tilde gamma -tilde and pi /sup 0/ -> gamma gamma -tilde gamma -tilde may be large enough to be experimentally interesting, provided that there is substantial mixing of left and right scalar quarks (for pi /sup 0/ -> gamma -tilde gamma -tilde) or large mass splitting between q-tilde/sub L/ and q-tilde/sub R/ (for pi /sup 0/ -> gamma gamma -tilde gamma -tilde). (author). 10 refs. (Atomindex citation 19:038757)