School of Physics, Korea Institute for Advanced Study, Seoul 130-722, Korea.
ARC Centre of Excellence for Particle Physics at the Terascale, Department of Physics, University of Adelaide, Adelaide, South Australia 5005, Australia.
Phys Rev Lett. 2016 Apr 1;116(13):131801. doi: 10.1103/PhysRevLett.116.131801.
The Higgs field in the standard model may couple to new physics sectors related to dark matter and/or massive neutrinos. In this Letter we propose a novel signature, the boosted di-Higgs-boson plus E_{T} (which is either a dark matter or neutrino), to probe those new physics sectors. In a large class of models, in particular, the supersymmetric standard models and low scale seesaw mechanisms, this signature can play a key role. The signature has a clear background, and at the sqrt[s]=14 TeV high luminosity LHC, we can probe it with a production rate as low as ∼0.1 fb. We apply it to benchmark models, supersymmetry in the bino-Higgsino limit, the canonical seesaw model, and the little Higgs model, finding that the masses of the Higgsino, right-handed neutrino, and heavy vector boson can be probed up to ∼500, 650, and 900 GeV, respectively.
标准模型中的希格斯场可能与暗物质和/或中微子相关的新物理领域耦合。在这封信中，我们提出了一个新的信号，即增强的双希格斯玻色子加 E_T（它是暗物质或中微子），以探测这些新物理领域。在一大类模型中，特别是在超对称标准模型和低尺度中微子机制中，这个信号可以起到关键作用。该信号的背景非常清晰，在 sqrt[s]=14TeV 的高亮度 LHC 中，我们可以用低至约 0.1fb 的产生率来探测它。我们将其应用于基准模型，包括玻色子-希格斯子极限下的超对称模型、规范中微子机制模型和小希格斯模型，发现希格斯子、右手中微子和重矢量玻色子的质量可以分别探测到约 500GeV、650GeV 和 900GeV。
