  It is a possibility that the superworld (supersymmetric partners of our
world) does exist without supersymmetry. The two worlds are being distinguished
by an unbroken discrete $Z_2$ symmetry (similar to R-parity in supersymmetry).
We lose the solution to the hierarchy problem. However, such a scenario has
several motivations. For example, the lightest neutral superworld particle will
be a candidate for dark matter. The other being, as in supersymmetry, it is
possible to achieve gauge coupling unification. One major difference with the
supersymmetric theory is that such a theory is much more general since it is
not constrained by supersymmetry. For example, some of the gauge couplings
connecting the Standard Model particles with the superpartners now become free
Yukawa couplings. As a result, the final state signals as well as the limits on
the superworld particles can be modified both qualitatively and quantitatively.
The reach for these superworld particles at the Large Hadron Collider (LHC) can
be much higher than the superpartners, leading to the increased possibility of
discovering new physics at the LHC.
