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arXiv 1607.02158hep-ph
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具有标量单态暗物质的类Dilaton希格斯玻色子玻色子

The Dilaton-like Higgs boson with scalar singlet dark matter

Robyn Campbell, Stephen Godfrey, Alejandro de la Puente

摘要:

我们研究了一个含有类希格斯玻色子和标准模型单重标量暗物质候选者的模型。首先,我们更新的状态识别观察到的125 GeV的希格斯玻色子与伪南武-戈德斯通玻色子,产生于自发打破的尺度不变性使用最近的希格斯玻色子信号强度测量的ATLAS和CMS合作。然后,我们约束扩展模型与最近的希格斯不可见的宽度,观察到的暗物质遗迹丰度和最新的暗物质直接检测限的限制。我们发现,的的大小的胶离子- $γγ$和胶离子-胶水-胶水耦合被限制为接近标准模型值。根据遗迹丰度极限和希格斯粒子不可见宽度极限,候选暗物质的质量被限制在大于玻色子质量的一半。暗物质直接探测极限只允许小质量区域,这将进一步受到即将到来的DEAP测量的限制。

英文摘要:

We study a model with a Higgs-like dilaton and a Standard Model gauge-singlet scalar dark matter candidate. We begin by updating the status of identifying the observed 125 GeV Higgs-like boson with the pseudo Nambu-Goldstone boson that arises from the spontaneous breaking of scale invariance using recent Higgs boson signal strength measurements by the ATLAS and CMS collaborations. We then constrain the extended model with recent constraints on the Higgs invisible width, the observed dark matter relic abundance and the latest dark matter direct detection limits. We found that the magnitude of the dilaton-$γγ$ and dilaton-glue-glue coupling is constrained to be close to the standard model values. The mass of the dark matter candidate is contrained to be greater than half the dilaton mass by relic abundance limits and Higgs invisible width limits. Dark matter direct detection limits allow only small mass regions which will be further constrained by upcoming DEAP measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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