Phenomenology of a supersymmetric model inspired by inflation

被引:11
|
作者
Hollik, Wolfgang Gregor [1 ,2 ]
Li, Cheng [3 ]
Moortgat-Pick, Gudrid [3 ,4 ]
Paasch, Steven [3 ]
机构
[1] Karlsruhe Inst Technol, Inst Nucl Phys, D-76021 Karlsruhe, Germany
[2] Karlsruhe Inst Technol, Inst Theoret Particle Phys, D-76128 Karlsruhe, Germany
[3] DESY, Notkestr 85, D-22607 Hamburg, Germany
[4] Univ Hamburg, Inst Theoret Phys 2, Luruper Chaussee 149, D-22761 Hamburg, Germany
来源
EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 02期
关键词
HIGGS-BOSON MASSES; FORTRAN CODE; PRECISE PREDICTION; DARK-MATTER; SEARCH; DECAYS; TEVATRON; PROGRAM; SECTORS; NMSSM;
D O I
10.1140/epjc/s10052-021-08869-4
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
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 onlymarginally. 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.
引用
收藏
页数:16
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