线性对撞机上R宇称破缺超对称效应研究

Study the effects of R-parity violating supersymmetry at linear colliders

在R宇称破缺的最小超对称模型下,研究了线性对撞机上轻子数破缺的耦合对top夸克对新的产生机制,并由此对t-t产生截面的新贡献.研究结果表明,在允许的参数范围内,R宇称破缺的相互作用不仅可以显著地改变top夸克对的产生截面,而且对top夸克的极化以及前后不对称性都有显著影响.

In this paper, we study the new production mechanism of lepton number violating coupling and contributions on tt production in R - parity violation SUSY model at linear colliders. It shows that in the allowed range of these R - violating couplings, the top pair production rates as well as the top quark polarization and the forward - backward asymmetry can be significantly altered.