I suspect that i'm missing some fundamental concept here, so please kindly help me figure it out (if any).
Suppose that superstring theory is a valid theory of nature. That is, every fundamental particle of nature, say $p$, is a vibrating string, with each vibrational mode corresponding to a different particle. Define $\Lambda$ to be the highest energy currently accessible at particle colliders and $p$ to be some fundamental particle that can only be experimentally detected at energies $>\Lambda$. Note that $p$ occurs with its supersymmetric (susy) partner, say $p^*$. Consider the vibrational mode of the string that corresponds to the particle $q$ that has exactly the same properties as $p$, except for the mass. More precisely, the mass of $q$ is sufficiently small such that $q$ can be experimentally detected at energies $\leq \Lambda$. Note that by supersymmetry, $q$ should also occur with its susy partner, say $q^*$. Observe that we now have a pair of susy particles $(q, q^*)$ that can be experimentally detected at energies $\leq \Lambda$. But we know that supersymmetry cannot be detected at energies currently accessible at particle accelerators, which is a contradiction ?