If one starts from a (4 + n)-dimensional spacetime, it is necessary to obtain an effective 4 dimensional (4D) theory by hiding the extra n space-like dimensions. The most widely used method is to make these extra dimensions so small that 4D experiments so far performed could not have proved their existence.
|Title of host publication||Quarks and Leptons From Orbifolded Superstring|
|Number of pages||31|
|State||Published - 2006|
|Name||Lecture Notes in Physics|