论文标题
通过双重电荷的Higgs玻色子对生产和随后的Leptonic衰变，在对撞机研究中区分HTM和MLRSM模型
Discriminating the HTM and MLRSM models in collider studies via doubly charged Higgs boson pair production and the subsequent leptonic decays
论文作者
论文摘要
我们提出了一项案例研究，该案例研究为$ e^+e^ - $ e^ - $和$ pp $ calliders $ h^{\ pm} $ h^{\ pm} $ h^{\ pm} $ h^{\ pm和$ pp $ callingers的案例研究，其随后的衰减为四个带电的leptons。我们考虑不受保管对称性和最小左右对称模型（MLRSM）限制的HIGGS三重态模型（HTM）。这些模型包括标量电势复杂性不同的标量三重态，并且由于实验限制，非标准三胞胎真空预期值的标度完全不同。在这两种型号中，双电荷的希格斯玻色子$ h^{\ pm \ pm} $都可以获取数百个gigaelectronvolts，可以在HL-LHC，未来的$ e^+e^ - $和HADRON COLLIDER上进行探测。我们考虑了来自中微子振荡，LHC，$ e^+e^ - $和低能量Lepton违反数据的两个模型参数的全面限制，并假定相同的质量$ h^{\ pm \ pm} $。我们的发现是，Lepton和Handron Colliders中的$ H^{\ pm \ pm} $对生产在这两种模型中都是可比性的，尽管MLRSM中更为明显。我们表明，在两个模型中，衰减分支比率都可能不同，从而导致四个Lepton信号，最强的是MLRSM产生的$4μ$事件。通常，我们发现MLRSM信号是HTM中大的一个数量级。例如，$ pp \ to4μ$ mlrsm信号的1 tev $ h^{\ pm \ pm} $质量会导致hl-lhc的$ s \ simeq 11 $和$ s \ simeq 290 $的FCC-HH的$ S \ simeq 11 $。最后，我们为DILEPTON不变的质量分布和Lepton分离提供了定量预测，这些预测有助于识别非标准信号。
We present a case study for the doubly charged Higgs bosons $H^{\pm\pm}$ pair production in $e^+e^-$ and $pp$ colliders with their subsequent decays to four charged leptons. We consider the Higgs Triplet Model (HTM) not restricted by the custodial symmetry and the Minimal Left-Right Symmetric Model (MLRSM). The models include scalar triplets with different complexity of scalar potentials and, due to experimental restrictions, completely different scales of non-standard triplet vacuum expectation values. In both models, a doubly charged Higgs boson $H^{\pm\pm}$ can acquire a mass of hundreds of gigaelectronvolts, which can be probed at HL-LHC, future $e^+e^-$, and hadron colliders. We take into account a comprehensive set of constraints on the parameters of both models coming from neutrino oscillations, LHC, $e^+e^-$ and low-energy lepton flavour violating data and assume the same mass of $H^{\pm\pm}$. Our finding is that the $H^{\pm\pm}$ pair production in lepton and hadron colliders is comparable in both models, though more pronounced in MLRSM. We show that the decay branching ratios can be different within both models, leading to distinguishable four lepton signals and that the strongest are $4μ$ events yielded by MLRSM. Typically we find that MLRSM signals are one order of magnitude larger that in HTM. For example, the $pp \to 4μ$ MLRSM signal for 1 TeV $H^{\pm \pm}$ mass results in a clearly detectable significance of $S \simeq 11$ for HL-LHC and $S \simeq 290$ for FCC-hh. Finally we provide quantitative predictions for the dilepton invariant mass distributions and lepton separations which help to identify non-standard signals.
