Han, T , Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA
部门归属:
[Han, T] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA; [Liu, HS; Luo, MX; Wu, W] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China; [Liu, HS; Luo, MX; Wu, W] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China; [Wang, K] Univ Tokyo, Inst Phys & Math Universe, Chiba 2778568, Japan; [Wang, K] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
英文摘要:
We study the potential LHC discovery of the Z(1) Kaluza-Klein gauge boson unitarizing W(L)(+)W(L)(-) scattering amplitude. In particular, we explore the decay mode Z(1)-> tt, along with Z(1)-> W(+)W(-), without specifying the branching fractions. We propose to exploit the associated production pp -> WZ(1) and select the final state of like-sign dileptons plus multijets and large missing energy. We conclude that it is possible to observe the Z(1) resonance at a 5 sigma level with an integrated luminosity of 100 fb(-1) at the LHC up to 650 GeV for a dominant WW channel, and 560 GeV for a dominant tt channel.
