Top pair production in the littlest Higgs model with T-parity

• Published in: Chinese physics C Vol. 33; no. 1; pp. 6 - 9
• Main Author: 张凤 赵国明 李永胜 王丽娜
• Format: Journal Article
• Language: English
• Published: IOP Publishing 2009; Information Engineering Institute,Dalian Jiaotong University,Dalian 116052,China%Department of Physics,Jilin Institute of Chemical Technology,Jilin 132022,China%Dalian Jingmao High School,Dalian 116029,China%College of Science,Shenyang Jianzhu Universi
• Subjects: 原子核物理; 希格斯介质; 高能物理; ILC; top quark; LHC; the littlest Higgs model
• ISSN: 1674-1137; 0254-3052; 2058-6132
• DOI: 10.1088/1674-1137/33/1/002

In the framework of the littlest Higgs model with T-parity, we study the top pair production at the next generation colliders like LHC and ILC. We find that the order O（αs） corrections to the standard model top pair production cross section at LHC can be very small and the magnitude is below 1%. However, the magnitude of corrections to the standard model top pair production rate at ILC may be over 5% for reasonable values＇of the parameters. Besides this, the corrections to the asymmetry ALR（tt） may be more sizable. Therefore, the top pair production at ILC may serve as a probe of the littlest Higgs model with T-parity, especially the asymmetry ALR（tt）.