Unparticle Effects on Top Quark Pair Production at Photon Collider  

作　　者：LI Hai-Feng LI Hong-Lei SI Zong-Guo YANG Zhong-Juan 

机构地区：[1]Department of Physics, Shandong University, Jinan 250100, China

出　　处：《Communications in Theoretical Physics》2009年第4期707-712,共6页理论物理通讯（英文版）

基　　金：supported in part by National Natural Science Foundation of China, NCET;Huo Ying-Dong Foundation

摘　　要：The unparticle effects on tt^- production at the future photon collider are investigated. Distributions of tt^- invariant mass and that for transverse momentum of top quark with respect to Standard Model and unparticle production are predicted. An odd valley with scalar unparticle contribution appears for some values of du, which is due to the big cancellation between the contribution from SM and that from unparticle. This character may be used to study the properties of scalar unparticle. Our investigations also show that scalar unparticle may play a significant role in tt^- production at the photon collider if it exists.

关 键 词：UNPARTICLE top quark linear collider 

分 类 号：O572.33[理学—粒子物理与原子核物理] TN243[理学—物理]