Higgs portal vector dark matter: revisited

被引：120
作者：
Baek, Seungwon [1 ]
Ko, P. [1 ]
Park, Wan-Il [1 ]
Senaha, Eibun [1 ]
机构：
[1] KIAS, Sch Phys, Seoul 130722, South Korea
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 05期
基金：
新加坡国家研究基金会;
关键词：
Higgs Physics; Beyond Standard Model; Cosmology of Theories beyond the SM; STANDARD MODEL;
D O I：
10.1007/JHEP05(2013)036
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We revisit the Higgs portal vector dark matter model including a hidden sector Higgs field that generates the mass of the vector dark matter. The model becomes renormalizable and has two scalar bosons, the mixtures of the standard model (SM) Higgs and the hidden sector Higgs bosons. The strong bound from direct detection such as XENON100 is evaded due to the cancellation mechanism between the contributions from two scalar bosons. As a result, the model becomes still viable in large range of dark matter mass, contrary to some claims in the literature. The Higgs properties are also affected, the signal strengths for the Higgs boson search being universally suppressed relative to the SM value, which could be tested at the LHC in the future.
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页数：18
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