EXA2011

A missing-mass spectra has been studied for the different channel of reactions as: ’p’ (p,$K^0_s$), С (p,$K^0_s$), ‘p’(p,p$K^0_s$), С(p,p$K^0_s$) , ’p’(p, $\Lambda$), C(p, $\Lambda$),’p’(p, $K^+)\Lambda$, C(p,$K^+)\Lambda$ and so on. There are statistically small peaks (3-4 S.D.) which are observed by this method on mass range of $K^0$(498), $\Lambda$(1520), $\phi$(1020), $\Sigma$ (2040), $^3H$, $^4He$ and so on. A good test of the method is observed the well known resonances for $\Sigma^+ $(1385) and $K^{*+}$(890). Statistically significant peaks were identified from reactions С(p,p$K^0_s$) and p (p, $\Lambda)\pi^-\gamma$ over a mass range of 11.36 (7.3 S.D.) and 3.2 GeV/$c^2$ (6. S.D.), which were interpreted as hyper-nucleus $^{12}$B and ($K^-$ppn) state predicted from kaon cluster model.