Probing the TC2 model via Production of Top Quark Pairs at Tevatron and LHC
GU Qin-Zhong 1,2, YANG Hua3, WANG Xue-Lei
1College of Physics and Information Engineering, Henan Normal University, Xinxiang 4530072Department of Physics and Information Engineering, Shangqiu Teachers College, Shangqiu 4760003Department of Mathematics and Physics, Information Engineering University, Zhengzhou 450004
Probing the TC2 model via Production of Top Quark Pairs at Tevatron and LHC
GU Qin-Zhong 1,2;YANG Hua3;WANG Xue-Lei
1College of Physics and Information Engineering, Henan Normal University, Xinxiang 4530072Department of Physics and Information Engineering, Shangqiu Teachers College, Shangqiu 4760003Department of Mathematics and Physics, Information Engineering University, Zhengzhou 450004
摘要The topcolour-assisted technicolour (TC2) model is an interesting dynamical theory among the various new physics models. We calculate the total tt cross section and the relative correction of the TC2 model to the cross section at Tevatron Run II and LHC. At the Tevatron Run II, the cross section predicted by the standard model (SM) is consistent with the experimental data, and in most parameter spaces of the TC2 model, the relative correction of the TC2 model to the cross section is too small to be detectable. We find that the tt cross section is more sensitive to the parameters of the TC2 model at the LHC and the relative correction of the TC2 model to the cross section is over 10% in general. Such a value of the relative correction should be large enough to be detectable at the LHC. Therefore, it is promising to find the clue of the TC2 model via the tt production at the LHC.
Abstract：The topcolour-assisted technicolour (TC2) model is an interesting dynamical theory among the various new physics models. We calculate the total tt cross section and the relative correction of the TC2 model to the cross section at Tevatron Run II and LHC. At the Tevatron Run II, the cross section predicted by the standard model (SM) is consistent with the experimental data, and in most parameter spaces of the TC2 model, the relative correction of the TC2 model to the cross section is too small to be detectable. We find that the tt cross section is more sensitive to the parameters of the TC2 model at the LHC and the relative correction of the TC2 model to the cross section is over 10% in general. Such a value of the relative correction should be large enough to be detectable at the LHC. Therefore, it is promising to find the clue of the TC2 model via the tt production at the LHC.
GU Qin-Zhong;YANG Hua;WANG Xue-Lei. Probing the TC2 model via Production of Top Quark Pairs at Tevatron and LHC[J]. 中国物理快报, 2007, 24(6): 1513-1516.
GU Qin-Zhong, YANG Hua, WANG Xue-Lei. Probing the TC2 model via Production of Top Quark Pairs at Tevatron and LHC. Chin. Phys. Lett., 2007, 24(6): 1513-1516.
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