论文标题

受通胀启发的超对称模型的现象学

Phenomenology of a Supersymmetric Model Inspired by Inflation

论文作者

Hollik, Wolfgang Gregor, Li, Cheng, Moortgat-Pick, Gudrid, Paasch, Steven

论文摘要

当前的高能量物理和宇宙学挑战是建立一致的粒子物理模型,以描述实验室中山脉的现象学和宇宙中的观察。从这些观察结果中,早期宇宙中通货膨胀阶段的存在为粒子物理模型提供了指导。我们研究了一个超对称模型,该模型通过非最小耦合与超级重力成功融合了通货膨胀,并显示了独特的对撞机现象学。在实验数据的启发下,我们特别强调了97 GEV的新型单线状状态,并为将来的线性对撞机唯一的可观察到可能的可观察力,该线性对撞机允许从类似的情况下区分模型,而无需通货膨胀。我们定义了与当前的对撞机和暗物质约束一致的基准场景,并研究非最小耦合对现象学的影响。即使标准模型样的希格斯耦合仅略有偏差,也可以在百分比水平上以高精度测量类似单线状的状态。然而,与标准模型Higgs在97 GEV处相比,一个假想的单线状状态约为20%,这会进一步研究这种通货膨胀的足迹场景。

The current challenges in High Energy Physics and Cosmology are to build coherent particle physics models to describe the phenomenology at colliders in the laboratory and the observations in the universe. From these observations, the existence of an inflationary phase in the early universe gives guidance for particle physics models. We study a supersymmetric model which incorporates successfully inflation by a non-minimal coupling to supergravity and shows a unique collider phenomenology. Motivated by experimental data, we set a special emphasis on a new singlet-like state at 97 GeV and single out possible observables for a future linear collider that permit a distinction of the model from a similar scenario without inflation. We define a benchmark scenario that is in agreement with current collider and Dark Matter constraints, and study the influence of the non-minimal coupling on the phenomenology. Measuring the singlet-like state with high precision on the percent level seems to be promising for resolving the models, even though the Standard Model-like Higgs couplings deviate only marginally. However, a hypothetical singlet-like state with couplings of about 20% compared to a Standard Model Higgs at 97 GeV encourages further studies of such footprint scenarios of inflation.

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