TY  - JOUR
AU  - Hollik, Wolfgang Gregor
AU  - Li, Cheng
AU  - Moortgat-Pick, Gudrid
AU  - Paasch, Steven
TI  - Phenomenology of a Supersymmetric Model Inspired by Inflation
JO  - The European physical journal / C
VL  - 81
IS  - 2
SN  - 1434-6044
CY  - Heidelberg
PB  - Springer
M1  - PUBDB-2022-00222
M1  - arXiv:2004.14852
M1  - DESY-20-059
M1  - TTP-2020-017
M1  - P3H-20-013
SP  - 141
PY  - 2021
N1  - The European Physical Journal C volume 81, Article number: 141 (2021). 21 pages, 10 figures; v2 matches published version
AB  - 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 \text 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 \text GeV encourages further studies of such footprint scenarios of inflation.
KW  - coupling: nonminimal (INSPIRE)
KW  - coupling: Higgs (INSPIRE)
KW  - inflation: model (INSPIRE)
KW  - cosmological model: parameter space (INSPIRE)
KW  - linear collider (INSPIRE)
KW  - supersymmetry (INSPIRE)
KW  - supergravity (INSPIRE)
KW  - dark matter: parametrization (INSPIRE)
KW  - coherence (INSPIRE)
KW  - benchmark (INSPIRE)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000618312200003
DO  - DOI:10.1140/epjc/s10052-021-08869-4
UR  - https://bib-pubdb1.desy.de/record/473742
ER  -