论文标题
区分惰性希格斯双重和惰性三胞胎场景
Distinguishing Inert Higgs Doublet and Inert Triplet Scenarios
论文作者
论文摘要
在本文中，我们考虑了I型2Hdm和$ y = 0 $，$ su（2）$ su（2）$ z_2 $ -odd Doublet和三重脚的比较研究，从而使所需的暗物质（DM）。对于惰性双线模型（IDM），中性标量或伪尺度可以是DM，而对于惰性三重态模型（ITM），则是CP-even call量表。通过计算两环β函数，研究了两种情况的扰动性和真空稳定性的边界。对于IDM的Planck量表扰动性的四分之一耦合限制为$ 0.1-0.2 $，但ITM的摄入量很大（$ 0.8 $）。 Coleman-Weinberg的RG改良电位显示了电动真空吸尘器的稳定性，元稳定性和不稳定性区域。来自DM Relic的约束，直接和间接的实验，例如Xenon1t，Lux和H.E.S.S.，Fermi-Lat允许DM质量$ \ GTRSIM 700，\，1176 $ GEV for IDM，ITM。尽管IDM中$ Z_2 $ -ODD粒子之间的质量分解是ITM的可能性，但我们必须依靠循环校正。 LHC上的现象学特征表明，在IDM和ITM的情况下，单左右和迅速和流离失所的衰减缺失能量可以与LHC的这种情况以及其他互补模式区分。
In this article we consider a comparative study between Type-I 2HDM and $Y=0$, $SU(2)$ triplet extensions having one $Z_2$-odd doublet and triplet that render the desired dark matter(DM). For the inert doublet model (IDM) either a neutral scalar or pseudoscalar can be the DM, whereas for inert triplet model (ITM) it is a CP-even scalar. The bounds from perturbativity and vacuum stability are studied for both the scenarios by calculating the two-loop beta functions. While the quartic couplings are restricted to $0.1-0.2$ for a Planck scale perturbativity for IDM, these are much relaxed ($0.8$ ) for ITM. The RG-improved potentials by Coleman-Weinberg show the regions of stability, meta-stability and instability of the electroweak vacuum. The constraints coming from DM relic, the direct and indirect experiments like XENON1T, LUX and H.E.S.S., Fermi-LAT allow the DM mass $\gtrsim 700, \,1176$ GeV for IDM, ITM respectively. Though mass-splitting among $Z_2$-odd particles in IDM is a possibility for ITM we have to rely on loop-corrections. The phenomenological signatures at the LHC show that the mono-lepton plus missing energy with prompt and displaced decays in the case of IDM and ITM can distinguish such scenarios at the LHC along with other complementary modes.
