2009/11/30 by Kaustubh Agashe, Aleksandr Azatov, Tao Han +3 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Boson #Cosmology and Gravitation Theories #Electroweak interaction #Gauge (firearms) #Gauge boson #Gauge theory #Goldstone boson #Higgs boson #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Standard Model (mathematical formulation) #Technicolor #hep-ph
paper · pdf · doi:10.1103/physrevd.81.096002
published as Phys.Rev.D81:096002,2010 · 49 pages, 9 figures, added references, published version
openalex publication_date 2010/05/18 · arxiv created 2010/06/23 · arxiv updated 2015/03/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The framework of a warped extra dimension with the standard model (SM) fields propagating in it is a very well-motivated extension of the SM since it can address both the Planck-weak and flavor hierarchy problems of the SM. Within this framework, solution to the little hierarchy problem motivates extending the SM electroweak (EW) 5D gauge symmetry in such a way that its breakdown to the SM delivers the SM Higgs boson. We study signals at the large hadron collider (LHC) for the extra EW (called coset) gauge bosons, a fundamental ingredient of this framework. The coset gauge bosons, due to their unique EW gauge quantum numbers [doublets of SU(2)L], do not couple at leading order to two SM particles. We find that, using the associated production of the charged coset gauge bosons via their coupling to bottom quark and a (light) Kaluza-Klein excitation of the top quark, the LHC can have a 3\ensuremathσ reach of \ensuremath∼2(2.6) TeV for the coset gauge boson masses with \ensuremath∼100(1000) fb^\ensuremath-1 luminosity. Since current theoretical framework(s) suggest an indirect lower limit on coset gauge boson masses of \ensuremath\gtrsim3 TeV, luminosity or energy upgrade of LHC is likely to be crucial in observing these states.