For 10 points - name these additional aspects of spacetime that are searched for at current colliders?
The orbifold type of these can provide candidates for theories like the Standard Model of particle physics without any Higgs boson.  The warped type, through the AdS-CFT correspondence, might provide a new way to study technicolor-like theories.  Because Newton's law of gravity has only been tested to about a tenth of millimeter, flat ones could be about that size, and string theory predicts six of them.  For 10 points - name these additional aspects of spacetime that are searched for at current colliders?
The orbifold type of these can provide candidates for theories like the Standard Model of particle physics without any Higgs boson.  
extra dimensions (accept reasonable equivalents)