论文标题
矢量暗物质和有效的现场理论方法的希格斯 - 港口：重新评估
The Higgs-portal for vector Dark Matter and the Effective Field Theory approach: a reappraisal
论文作者
论文摘要
我们重新分析了有效的现场理论方法，即在宇宙中解释暗物质（DM）的粒子是矢量状态，它们仅通过在LHC上观察到的标准模型的Higgs玻色子相互作用。这种独立的和简单的方法，具有最小的新输入参数集，被广泛用作DM搜索和Astroparpicle和对撞机物理学研究的基准。我们表明，这种有效的理论可能是紫外线完整模型的限制案例，以自发损坏的u（1）规格对称性为例，该模型结合了深色仪表和与标准的Higgs Boson混合在一起的额外标量。因此，尽管存在新的自由度，但在诸如CERN LHC等山脉（例如Cern LHC）上执行的Higgs Boson的无形衰减分支比的测量可以在这种有效的框架中始终如一地解释，并且可以与直接检测实验中DM搜索结果进行互补。
We reanalyze the effective field theory approach for the scenario in which the particles that account for the dark matter (DM) in the universe are vector states that interact only or mainly through the Standard Model-like Higgs boson observed at the LHC. This model-independent and simple approach, with a minimal set of new input parameters, is widely used as a benchmark in DM searches and studies in astroparticle and collider physics. We show that this effective theory could be the limiting case of ultraviolet complete models, taking as an example the one based on a spontaneously broken U(1) gauge symmetry that incorporates a dark gauge boson and an additional scalar that mixes with the standard Higgs boson. Hence, despite the presence of the new degrees of freedom, measurements of the invisible decay branching ratio of the Higgs boson, as performed at colliders such as the CERN LHC, can be interpreted consistently in such an effective framework and can be made complementary to results of DM searches in direct detection experiments.
