Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8193581 | Physics Letters B | 2010 | 5 Pages |
Abstract
We examine signals at the Large Hadron Collider (LHC) of Kaluza-Klein modes, in volume-truncated “Little Randall-Sundrum” (LRS) models of flavor, characterized by 5D cutoff scales M5 that are small compared to the 4D Planck mass MPâ¼1019 GeV. In particular, for the phenomenologically viable choice M5â¼104 TeV, the discovery of a 2 (3)-TeV “Little” Zâ² at the LHC requires about 1 (4) fbâ1 at s=10 (14) TeV, in the clean di-lepton channel. Our results highlight the possibility of probing interesting values of M5, starting with the early LHC data. With M5â¼104 TeV, discovering the second KK mode Zâ³, at about 4.3 TeV, requires O(100) fbâ1 at s=14 TeV, providing a probe of the warped nature of the bulk that is encoded in the mass ratio of the first two KK modes, at design luminosity. By comparison, discovering a 3-TeV Zâ² of the Planck-weak hierarchy models (with M5â¼MP), in any channel, would require upwards of O(300) fbâ1 at s=14 TeV. We also point out that discovery prospects markedly improve for Little KK gluons as well, but the challenging reconstruction of their tt¯ decay products may hamper their early discovery.
Keywords
Related Topics
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Authors
Hooman Davoudiasl, Shrihari Gopalakrishna, Amarjit Soni,