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引用次数: 0
摘要
由于 SM 希格斯玻色子 h 是 2HDM 中两个不等质量中性希格斯玻色子的叠加，因此在 SM 和 2HDM 中 h 和 Z 的相关产生截面可能不同。本文研究了利用这种差异发现或约束 2HDM 的可能性。主要结果是，根据大型强子对撞机实验可能进行的精确测量，找到了 2HDM II 型的允许参数空间。结果表明，将这些测量结果的约束与先前直接搜索和味道物理对2HDM的约束结合起来，可以排除2HDM参数空间的主要部分。
Since the SM Higgs boson, h, is the superposition of two unequal-mass neutral Higgs bosons in 2HDM, therefore the associated production cross section for h and Z in SM and 2HDM can be different. In this paper, the possibility of using this difference to discover or constrain 2HDM is studied. As a main result, the allowed parameter space of 2HDM type-II is found in the light of possible precise measurements from the LHC experiments. It is shown that combination of the constraints from these measurements with the previous constraints on 2HDM, from direct search and flavour physics, can rule out the main part of the 2HDM parameter space.
期刊介绍：
International Journal of Theoretical Physics publishes original research and reviews in theoretical physics and neighboring fields. Dedicated to the unification of the latest physics research, this journal seeks to map the direction of future research by original work in traditional physics like general relativity, quantum theory with relativistic quantum field theory,as used in particle physics, and by fresh inquiry into quantum measurement theory, and other similarly fundamental areas, e.g. quantum geometry and quantum logic, etc.
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