最小超对称模型中希格斯势的真空稳定性  

Vacuum stability of Higgs potential in the minimum supersymmetric model

作　　者：阎贲 冯太傅 YAN Ben;FENG Taifu(College of Physics Science and Technology, Hebei University, Baoding 071002, China)

机构地区：[1]河北大学物理科学与技术学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2022年第2期139-143,共5页Journal of Hebei University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(12075074,11705045)。

摘　　要：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tanβ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 tanβis 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.

关 键 词：希格斯势 真空稳定性 重整化群方程 最小超对称 

分 类 号：O412.3[理学—理论物理]