Novel theoretical constraints for color-octet scalar models

论文摘要

We study the theoretical constraints on a model whose scalar sector contains one color octet and one or two color singlet SU（2）L doublets. To ensure unitarity of the theory, we constrain the parameters of the scalar potential for the first time at the next-to-leading order in perturbation theory. Moreover, we derive new conditions guaranteeing the stability of the potential. We employ the HEPfit package to extract viable parameter regions at the electroweak scale and test the stability of the renormalization group evolution up to the multi-Te V region. Furthermore,we set upper limits on the scalar mass splittings. All results are given for both cases with and without a second scalar color singlet.

论文目录

文章来源

类型: 期刊论文

作者: Li Cheng,Otto Eberhardt,Christopher W.Murphy

来源: Chinese Physics C 2019年09期

年度: 2019

分类: 基础科学

专业: 物理学

单位: Institute of Applied Physics and Computational Mathematics,Instituto de Física Corpuscular, Universitat de València – CSIC,Department of Physics, Brookhaven National Laboratory

基金: supported by the Agencia Estatal de Investigación(AEI,ES),the European Regional Development Fund(ERDF,EU)(FPA2014-53631-C2-1-P,FPA2017-84445-P,and SEV-2014-0398),supported by the United States Department of Energy under Grant Contract DE-SC0012704

分类号: O572

页码: 5-15

总页数: 11

文件大小: 816K

下载量: 2

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