摘要
In this paper, we study the production of the neutral top-pion （Πt^0） associated with a gauge boson at the LHC, i.e. pp →Πt^0V （V = g, W, Z, γ）. The cross section of pp→Πt^0g is at the level of 10^2 pb in the most parameter space. Such a process with the flavor-changing decay mode Πt^0→tc might provide viable signatures to detect rio at the LHC. The cross sections of other processes pp →→Πt^0W（Z,γ） distinguish the Higgs boson in the SM or MSSM from rio. are too small to detect Πt^0, which open a window to distinguish the Higgs boson in the SM or MSSM from Πt^0
基金
The project supported by National Natural Science Foundation of China under Grant No. 10375017, the Excellent Youth Foundation of Henan Scientific Committee, and the Henan Innovation Project for University Prominent Reseaxch Talents
