Effects of R-Parity Violating Supersymmetry in Top Pair Production at Linear Colliders with Polarized Beams  

作　　者：WANG Xue-Lei LI Ji-Tao LIU Su-Zhen 

机构地区：College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China

出　　处：《Communications in Theoretical Physics》2007年第5X期891-894,共4页理论物理通讯（英文版）

基　　金：The project supported by National Natural Science Foundation of China, the Excellent Youth Foundation of Henan Science Committee and the Henan Innovation Project for University Prominent Research Talents

摘　　要：In the minimal supersymmetric standard model with R-parity violation, the lepton number violating top quark interactions can contribute to the top pair production at a linear collider via tree-level u-channel squark exchange diagrams. We calculate such contributions and find that in the allowed range of these R-violating couplings, the top pair production rate as well as the top quark polarization and the forward-backward asymmetry can be significantly altered. By comparing the unpolarized beams with the polarized beams, we find that the polarized beams are more powerful in probing such new physics.

关 键 词：linear colliders minimal supersymmetric model top quark R-PARITY 

分 类 号：O17[理学—数学]