Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP01(2012)157
Keywords
Beyond Standard Model; Technicolor and Composite Models
Categories
Funding
- ERC [267985]
- DOE [DE-FG02-01ER41155]
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We study the collider phenomenology of the lightest Kaluza-Klein excitation of the gluon, G*, in theories with a warped extra dimension. We do so by means of a two-site effective lagrangian which includes only the lowest-lying spin-1 and spin-1/2 resonances. We point out the importance of the decays of G* to one SM plus one heavy fermion, that were overlooked in the previous literature. It turns out that, when kinematically allowed, such heavy-light decays are powerful channels for discovering the G*. In particular, we present a parton-level Montecarlo analysis of the final state Wtb that follows from the decay of G* to one SM top or bottom quark plus its heavy partner. We find that at root s = 7TeV and with 10 fb(-1) of integrated luminosity, the LHC can discover a KK gluon with mass in the range M-G* = (1.8 - 2.2) TeV if its coupling to a pair of light quarks is g(G*q (q) over bar) = (0.2 - 0.5)g(3). The same process is also competitive for the discovery of the top and bottom partners as well. We find, for example, that the LHC at root s = 7TeV can discover a 1TeV KK bottom quark with an integrated luminosity of (5.3 - 0.61) fb(-1) for g(G*q (q) over bar) = (0.2 - 0.5)g(3).
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