Constraining Higgs mediated dark matter interactions

被引：41

作者：

Greljo, Admir ^{[1
]}

Julio, J. ^{[1
]}

Kamenik, Jernej F. ^{[1
,2
]}

Smith, Christopher ^{[3
]}

Zupan, Jure ^{[4
]}

机构：

[1] Jozef Stefan Inst, Ljubljana 1001, Slovenia

[2] Univ Ljubljana, Dept Phys, Ljubljana 1000, Slovenia

[3] Univ Grenoble 1, LPSC, IN2P3, CNRS,UMR5821,Inst Polytech Grenoble, F-38026 Grenoble, France

[4] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 11期

基金：

美国国家科学基金会;

关键词：

Higgs Physics; Beyond Standard Model; Cosmology of Theories beyond the SM; NEUTRINO MASS; MODEL;

D O I：

10.1007/JHEP11(2013)190

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 perform an analysis of Higgs portal models of dark matter (DM), where DM is light enough to contribute to invisible Higgs decays. Using effective field theory we show that DM can be a thermal relic only if there are additional light particles present with masses below a few 100 GeV. We give three concrete examples of viable Higgs portal models of light DM: (i) the SM extended by DM scalar along with an electroweak triplet and a singlet, (ii) a Two Higgs Doublet Model of type II with additional scalar DM, (iii) SM with DM and an extra scalar singlet that is lighter than DM. In all three examples the beta(h -> invisible) constraint is not too restrictive, because it is governed by different parameters than the relic abundance. Additional light particles can have implications for flavor violation and collider searches.

引用

页数：30

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