讨论了量子场论对希格斯有效势的单圈阶修正与重整化群方程的改进方法,并将这些理论应用于最小超对称模型(minimum supersymmetric model,MSSM).在MSSM框架下讨论了稳定的希格斯有效势对敏感参数tan β的限制,通过重整化群方程的双圈阶数值解,在不同能标下对希格斯势的真空稳定性进行了研究并作出了分析.结果表明,随能标增长希格斯势行为有所变化,但没有出现标准模型那样的不稳定势.
The one loop correction to the Higgs effective potential and the improvement of renormalization group equation in quantum field theory are discussed. These processing method is applied to the minimum supersymmetric model(MSSM). In the framework of MSSM, the limitation of a stable Higgs effective potential on the sensitive parameter tan β is discussed. Using the two loop order numerical solution for the renormalization group equation, the vacuum stability of the Higgs potential is studied under different energy scales. The results show that the behavior of the Higgs potential changes with the increase of the energy scale, but there is no instability as that in the standard model.
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