Multi-Higgs portal dark matter under the CDMS II results

被引:45
作者
Aoki, Mayumi [2 ]
Kanemura, Shinya [3 ]
Seto, Osamu [1 ]
机构
[1] Hokkai Gakuen Univ, Dept Architecture & Bldg Engn, Sapporo, Hokkaido 0628605, Japan
[2] Tohoku Univ, Dept Phys, Aoba Ku, Sendai, Miyagi 9808578, Japan
[3] Toyama Univ, Dept Phys, Toyama 9308555, Japan
基金
日本学术振兴会;
关键词
CONSTRAINTS;
D O I
10.1016/j.physletb.2010.02.005
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In a scenario of Higgs portal dark matter, Higgs exchange processes are essential for both dark matter annihilation in the early Universe and direct search experiments The CDMS II Collaboration has recently released their final results oil direct dark matter searches We study a scalar dark matter model with multi-Higgs doublets under the constraint from the CDMS II results and also from the WMAP data We find that the possible maximal value for the branching ratio of the invisible decay of the Higgs boson can be significantly greater than that in the Higgs portal model with one Higgs doublet, in particular, for file case of the so-called Type-X Yukawa interaction Therefore. the search for the invisible decay of the Higgs boson at the CERN Large Hadron Collider and future collider experiments Would provide useful information not only for the nature of dark matter but also for the structure of file Higgs sector even Without directly detecting any extra scalar boson (C) 2010 Elsevier B V All rights reserved
引用
收藏
页码:313 / 317
页数:5
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