  In models of large extra dimensions, the fundamental Planck scale can be as
low as TeV. Thus, in hadronic collisions interesting objects like black holes,
string balls, or $p$-branes can be produced. In scenarios of fat brane or
universal extra dimensions, the SM particles are allowed to propagate in the
extra spatial dimensions, which leads to the enhancement of production cross
sections of black holes and $p$-branes. Especially, the ratio of $p$-brane
cross section to the black hole cross section increases substantially, in
comparison with the original confined scenario. The ratio can be as large as
105 (for the case $n=7,m=5=p=r=k$).
