Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-08-31
Phys.Rev.D76:115015,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
43 pages
Scientific paper
10.1103/PhysRevD.76.115015
We study signals at the Large Hadron Collider (LHC) for Kaluza-Klein (KK) excitations of the electroweak gauge bosons in the framework with the Standard Model (SM) gauge and fermion fields propagating in a warped extra dimension. Such a framework addresses both the Planck-weak and flavor hierarchy problems of the SM. Unlike the often studied Z' cases, in this framework, there are three neutral gauge bosons due to the underlying SU(2)_L x SU(2)_R x U(1)_X gauge group in the bulk. Furthermore, couplings of these KK states to light quarks and leptons are suppressed, whereas those to top and bottom quarks are enhanced compared to the SM gauge couplings. Therefore, the production of light quark and lepton states is suppressed relative to other beyond the SM constructions, and the fermionic decays of these states are dominated by the top and bottom quarks, which are, though, overwhelmed by KK gluons dominantly decaying into them. However, as we emphasize in this paper, decays of these states to longitudinal W, Z and Higgs are also enhanced similarly to the case of top and bottom quarks. We show that the W, Z and Higgs final states can give significant sensitivity at the LHC to 2 (3) TeV KK scale with an integrated luminosity of 100 invfb (1 invab). Since current theoretical framework(s) favor KK masses greater than about 3 TeV, luminosity upgrade of LHC is likely to be crucial in observing these states.
Agashe Kaustubh
Davoudiasl Hooman
Gopalakrishna Shrihari
Han Tao
Huang Gui-Yu
No associations
LandOfFree
LHC Signals for Warped Electroweak Neutral Gauge Bosons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with LHC Signals for Warped Electroweak Neutral Gauge Bosons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LHC Signals for Warped Electroweak Neutral Gauge Bosons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-195672