Detecting Light-Gluino-Containing Hadrons

When supersymmetry breaking produces only dimension-2 operators, gluino and photino masses are of order 1 GeV or less. The $g\tilde{g}$ bound state has mass 1.3–2.2 GeV and lifetime $\gtrsim {10}^{-5\mathrm{}}–{10}^{-10\mathrm{}}$ s. This range of mass and lifetime is largely unconstrained because missing energy and beam dump techniques are ineffective. With only small modifications, upcoming $K^0$ decay experiments can study most of the interesting range. The lightest gluino-containing baryon $\left(\mathrm{uds}\tilde{g}\right)$ is long lived or stable; experiments to find it and the $\mathrm{uud}\tilde{g}$ are also discussed.