Constraints on scalar dark matter from direct experimental searches
Constraints on scalar dark matter from direct experimental searches
复制标题
直接实验搜索对标量暗物质的限制
DOI:
10.1103/physrevd.79.023521
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发表时间:
2008-11
影响因子:
5
通讯作者:
Tsai, Ho-Chin
中科院分区:
文献类型:
--
作者:
T;ean, Jusak;Li, Xue-Qian;He, Xiao-Gang;Li, Tong;Tsai, Ho-Chin
The standard model (SM) plus a real gauge-singlet scalar field dubbed darkon (SM+D) is the simplest model possessing a weakly interacting massive particle (WIMP) dark-matter candidate. The upper limits for the WIMP-nucleon elastic cross section as a function of WIMP mass from the recent XENON10 and CDMS II experiments rule out darkon mass ranges from 10 to (50, 70, 75) GeV for Higgs-boson masses of (120, 200, 350) GeV, respectively. This may exclude the possibility of the darkon providing an explanation for the gamma-ray excess observed in the EGRET data. We show that by extending the SM+D to a two-Higgs-doublet model plus a darkon the experimental constraints on the WIMP-nucleon interactions can be circumvented due to suppression occurring at some values of the product tan{alpha}tan{beta}, with {alpha} being the neutral-Higgs mixing angle and tan{beta} the ratio of vacuum expectation values of the Higgs doublets. We also comment on the implication of the darkon model for Higgs searches at the LHC.
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影响因子:
4.4
作者:
M. Shifman;A. Vainshtein;V. Zakharov
通讯作者:
M. Shifman;A. Vainshtein;V. Zakharov
影响因子:
4.4
作者:
H. Davoudiasl;R. Kitano;Tianjun Li;H. Murayama
通讯作者:
H. Davoudiasl;R. Kitano;Tianjun Li;H. Murayama
DOI:
10.1103/physrevd.38.2869
发表时间:
1988-11
期刊:
Physical review. D, Particles and fields
影响因子:
--
作者:
Ta-Pei Cheng
通讯作者:
Ta-Pei Cheng
DOI:
10.1016/s0550-3213(01)00513-2
发表时间:
2000-11
期刊:
Nuclear Physics
影响因子:
--
作者:
C. Burgess;C. Burgess;M. Pospelov;T. Veldhuis
通讯作者:
C. Burgess;C. Burgess;M. Pospelov;T. Veldhuis
影响因子:
8.6
作者:
J. McDonald
通讯作者:
J. McDonald