Novel theoretical constraints for color-octet scalar models

作     者：成立 Otto Eberhardt Christopher W.Murphy Li Cheng

作者机构：Institute of Applied Physics and Computational MathematicsBeijing 100094China Instituto de Fisica CorpuscularUniversitat de Valencia-CSICApt.Correus 22085E-46071 ValenciaSpain Department of PhysicsBrookhaven National LaboratoryUptonNew York11973USA 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2019年第43卷第9期

页      面：1-11页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0704[理学-天文学] 0702[理学-物理学] 

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 

主　　题：beyond the Standard Model extension of Higgs sector EW symmetry breaking 

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 *** 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 ***,we derive new conditions guaranteeing the stability of the *** 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-TeV ***,we set upper limits on the scalar mass *** results are given for both cases with and without a second scalar color singlet.