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We analyze the quark-gluon induced process $u g\to \tilde d\tchi_i^+$,including the one loop electroweak (EW) effects in the minimal supersymmetricmodel (MSSM). This process is determined by four helicity amplitudes, three ofwhich are violating helicity conservation, and another one which respects itand is logarithmically enhanced at high energy. Combining this $u g\to \tilded\tchi_i^+$ analysis with a corresponding one for $u g \to d W^+$, we obtainsimple approximate relations between the two processes, testing the MSSMstructure at the amplitude and the cross section levels. These relations becomeexact at asymptotic energies and, provided the SUSY scale is not too heavy,they may be approximately correct at LHC energies also. In addition to these,we study the 1loop EW corrections to the inclusive $\tilde d\tchi_i^+$production at LHC, presenting as examples, the $p_T$ and angular distributions.Comparing these to the corresponding predictions for $W$+jet production derivedearlier, provides an accurate test of the supersymmetric assignments.

Genuine SUSY signatures from $ug\to \tilde d \tchi_i^+$ and $ug \to d W^+$, at high energies