Low-Mass Dark-Matter Hint from CDMS II, Higgs Boson at the LHC, and Darkon Models

Low-Mass Dark-Matter Hint from CDMS II, Higgs Boson at the LHC, and Darkon Models
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CDMS II、大型强子对撞机的希格斯玻色子和达肯模型的低质量暗物质提示

DOI:
10.1103/physrevd.88.013020
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发表时间:
2013-04
期刊:
Physical Review D - Particles, Fields, Gravitation and Cosmology
影响因子:
--
通讯作者:
ean, Jusak
ean, Jusak
中科院分区:
其他
文献类型:
--
作者:
He, Xiao-Gang;T;ean, Jusak

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CDMS II 实验观察到了三个事件,这些事件可能是由质量为 9 GeV 的弱相互作用大质量粒子 (WIMP) 暗物质 (DM) 与原子核碰撞引起的。尽管隐含的 WIMP 参数区域似乎被 XENON 实验的限制排除在外,但有趣的是,如果 WIMP-核子相互作用违反同位旋,大部分张力就会消失。这促使我们探索对模型的一些影响,在该模型中,真正的规范单线标量粒子达克粒子充当 WIMP,同时考虑到最近在大型强子对撞机中发现的希格斯玻色子和普朗克对 DM 遗迹密度的测定。在最简单的场景中,仅涉及标准模型加一个达克子,希格斯玻色子在很大程度上是不可见的,因为它衰变为一对具有 CDMS II 所建议的 WIMP 质量的达克子,因此无法与大型强子对撞机中发现的暗子进行识别。另一方面,我们发现,补充有达克子的双希格斯双峰模型具有充足的参数空间,可以很好地容纳来自 CDMS II 的新潜在 DM 提示和来自 LHC 的希格斯数据,无论达克子-核子相互作用是否守恒同位旋。
The CDMS II experiment has observed three events which may have arisen from weakly interacting massive particle (WIMP) dark matter (DM) with mass of order 9 GeV colliding with nuclei. Although the implied WIMP parameter region seems to be excluded by limits from the XENON experiments, it is interesting that most of this tension can go away if the WIMP-nucleon interaction violates isospin. This motivates us to explore some of the implications for models in which a real gauge-singlet scalar particle, the darkon, serves as the WIMP, taking into account the recent discovery of a Higgs boson at the LHC and Planck determination of the DM relic density. In the simplest scenario, involving only the standard model plus a darkon, the Higgs boson is largely invisible due to its decay into a pair of darkons having the WIMP mass suggested by CDMS II and hence cannot be identified with the one found at the LHC. We find, on the other hand, that a two-Higgs-doublet model supplemented with a darkon has ample parameter space to accommodate well both the new potential DM hint from CDMS II and the Higgs data from the LHC, whether or not the darkon-nucleon interaction conserves isospin.
DOI: --
发表时间: 2009
期刊: --
影响因子: --
作者:
Z. Karpova;M. N. Sergeenko;V. Bednyakov
通讯作者: Z. Karpova;M. N. Sergeenko;V. Bednyakov
DOI: 10.1201/9780429496448
发表时间: 1990
期刊: --
影响因子: --
作者:
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