Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-11-16
Phys.Lett.B647:43-48,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 3 figs; refs and discussion added
Scientific paper
10.1016/j.physletb.2007.01.045
We consider the production of black holes at the LHC in the Randall-Sundrum(RS) model through the collisions of Standard Model(SM) fields in the bulk. In comparison to the previously studied case where the SM fields are all confined to the TeV brane, we find substantial suppressions to the corresponding collider cross sections for all initial states, i.e., $gg$, $qq$ and $gq$, where $q$ represents a light quark or anti-quark which lie close to the Planck brane. For $b$ quarks, which are closer to the TeV brane, this suppression effect is somewhat weaker though $b$ quark contributions to the cross section are already quite small due to their relatively small parton densities. Semi-quantitatively, we find that the overall black hole cross section is reduced by roughly two orders of magnitude in comparison to the traditional TeV brane localized RS model with the exact value being sensitive to the detailed localizations of the light SM fermions in the bulk.
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