Exploring the singlet scalar dark matter from direct detections and neutrino signals via its annihilation in the Sun

被引：3
作者：
Guo, Wan-Lei [1 ]
Wu, Yue-Liang [1 ]
机构：
[1] Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
来源：
NUCLEAR PHYSICS B | 2013年 / 867卷 / 02期
关键词：
LEFT-RIGHT MODEL; SEARCH;
D O I：
10.1016/j.nuclphysb.2012.09.016
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 explore the singlet scalar dark matter (DM) from direct detections and high energy neutrino signals generated by the solar DM annihilation. Two singlet scalar DM models are discussed, one is the real singlet scalar DM model as the simple extension of the standard model (SSDM-SM) with a discrete Z(2) symmetry, and another is the complex singlet scalar DM model as the simple extension of the left-right symmetric two Higgs bidoublet model (SSDM-2HBDM) with P and CP symmetries. To derive the Sun capture rate, we consider the uncertainties in the hadronic matrix elements and calculate the spin-independent DM-nucleon elastic scattering cross section. We find that the predicted neutrino induced upgoing muon fluxes in the region 3.7 GeV <= m(D) <= 4.2 GeV slightly exceed the Super-Kamiokande limit in the SSDM-SM. However, this exceeded region can be excluded by the current DM direct detection experiments. For the SSDM-2HBDM. one may adjust the Yukawa couplings to avoid the direct detection limits and enhance the predicted muon fluxes. For the allowed parameter space of the SSDM-SM and SSDM-2HBDM, the produced muon fluxes in the Super-Kamiokande and muon event rates in the IceCube are less than the experiment upper bound and atmosphere background, respectively. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：149 / 164
页数：16
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