Project

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Matter, Forces and the Universe

Applicant Antusch Stefan
Number 149066
Funding scheme Project funding (Div. I-III)
Research institution Departement Physik Universität Basel
Institution of higher education University of Basel - BS
Main discipline Particle Physics
Start/End 01.10.2013 - 30.09.2015
Approved amount 406'512.00
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All Disciplines (3)

Discipline
Particle Physics
Astronomy, Astrophysics and Space Sciences
Theoretical Physics

Keywords (4)

early universe cosmology; grand unified theories; neutrino physics; origin of fermion masses and mixing

Lay Summary (German)

Lead
Ziel des Projekts "Matter, Forces and the Universe" ist es, einen Beitrag zur Entwicklung einer fundamentaleren Theorie der Elementarteilchen und der Kosmologie zu leisten, welche die offenen Fragen der gegenwärtigen Modelle löst und welche in laufenden und zukünftigen Experimenten getestet werden kann.
Lay summary

Was ist die fundamentale Theorie der Materie, der Kräfte und des Universums? Diese Frage bildet die Motivation für die Forschung im Gebiet der theoretischen und experimentellen Elementarteilchenphysik und Kosmologie. Der aktuelle Wissensstand wird beschrieben durch das sogenannte "Standardmodell" der Elementarteilchen und das "Concordance Model" in der Kosmologie. Trotz der grossen Erfolge dieser Modelle bleiben viele Fragen unbeantwortet. Beispielsweise werden die beobachteten Neutrinomassen nicht durch das "Standardmodell" der Elementarteilchen beschrieben. In der Kosmologie sind viele offene Fragen mit der Frühphase der Entwicklung des Universums verknüpft. In dieser Frühphase werden die Grundvoraussetzungen für das heutige Universum gelegt, wie beispielsweise die Materie-Antimaterie Asymmetrie und die relative Flachheit des Universums.
 
Ein Schwerpunkt des aktuellen Projekts ist es, teilchenphysikalische Theorien des Universums zu entwickeln und die Gültigkeit dieser Modelle mit den kosmologischen Beobachtungen zu überprüfen. Ausgangspunkt ist hierfür die Beschreibung der sogenannten inflationären Phase des Universums, in der es sich in einem winzigen Bruchteil einer Sekunde explosionsartig ausgedehnt hat. Diese explosionsartige Ausdehnung des Universums findet bei Energien statt, bei denen die drei Standardmodell-Kräfte zwischen den Elementarteilchen im Rahmen einer fundamentaleren "Vereinigten Theorie" beschrieben werden können. Es ist ein weiterer Schwerpunkt des Projekts, solche "Vereinigte Elementarteilchentheorien" weiterzuentwickeln, sodass sie mit den aktuellen experimentellen Daten in Einklang sind und zudem überprüfbare Vorhersagen für zukünftige Experimente machen.

Basierend auf dem Zusammenspiel zwischen Theorie und Experiment ist das langfristige Ziel die Zusammenführung der Modelle der Elementarteilchenphysik und der Kosmologie. Aufgabe des Projekts ist es, einen Beitrag zur Entwicklung einer solchen fundamentaleren Theorie der Elementarteilchen und Kosmologie zu leisten.

Direct link to Lay Summary Last update: 02.10.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
A4 symmetry at colliders and in the universe
de Medeiros Varzielas Ivo, Fischer Oliver, Maurer Vinzenz (2015), A4 symmetry at colliders and in the universe, in Journal of High Energy Physics, 2015(8), 1.
Hill crossing during preheating after hilltop inflation
Antusch Stefan, Antusch Stefan, Nolde David, Orani Stefano (2015), Hill crossing during preheating after hilltop inflation, in Journal of Cosmology and Astroparticle Physics, 2015(6), 1.
Non-thermal Gravitino Production in Tribrid Inflation
Antusch Stefan, Dutta Koushik (2015), Non-thermal Gravitino Production in Tribrid Inflation, in Phys. Rev., D92(083503), 1.
One-loop right-handed neutrino threshold corrections for two-loop running in supersymmetric type I seesaw models
Antusch Stefan, Cazzato Eros (2015), One-loop right-handed neutrino threshold corrections for two-loop running in supersymmetric type I seesaw models, in JHEP, 1512, 066.
Realising effective theories of tribrid inflation: Are there effects from messenger fields?
Antusch Stefan, Nolde David (2015), Realising effective theories of tribrid inflation: Are there effects from messenger fields?, in JCAP, 1509(09), 1.
Testing sterile neutrino extensions of the Standard Model at future lepton colliders
Antusch Stefan, Antusch Stefan, Fischer Oliver (2015), Testing sterile neutrino extensions of the Standard Model at future lepton colliders, in Journal of High Energy Physics, 2015(5), 1.
Testing sterile neutrino extensions of the Standard Model at the Circular Electron Positron Collider
Antusch Stefan, Antusch Stefan, Fischer Oliver (2015), Testing sterile neutrino extensions of the Standard Model at the Circular Electron Positron Collider, in International Journal of Modern Physics A, 30(23), 1.
False vacuum energy dominated inflation with large r and the importance of κs
Antusch Stefan, Antusch Stefan, Cefalà Francesco, Nolde David, Orani Stefano (2014), False vacuum energy dominated inflation with large r and the importance of κs, in Journal of Cosmology and Astroparticle Physics, 2014(10), 1.
First look at the physics case of TLEP
Bicer M., Yildiz H. Duran, Yildiz I., Coignet G., Delmastro M., Alexopoulos T., Grojean C., Antusch S., Sen T., He H-J., Potamianos K., Haug S., Moreno A., Heister A., Sanz V., Gomez-Ceballos G., Klute M., Zanetti M., Wang L-T, Dam M., boehm C., Glover N., Krauss F., Lenz A., Syphers M. (2014), First look at the physics case of TLEP, in JOURNAL OF HIGH ENERGY PHYSICS, (1), 1.
General analytic predictions of two-field inflation and perturbative reheating
Elliston Joseph, Orani Stefano, Mulryne David J. (2014), General analytic predictions of two-field inflation and perturbative reheating, in Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(10), 1.
GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets
Antusch Stefan, Antusch Stefan, King Stephen F., Spinrath Martin, Spinrath Martin (2014), GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets, in Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(5), 1.
BICEP2 implications for single-field slow-roll inflation revisited
Antusch Stefan, Antusch Stefan, Nolde David (2013), BICEP2 implications for single-field slow-roll inflation revisited, in Journal of Cosmology and Astroparticle Physics, 2014(5), 1.
Hilltop inflation with preinflation from coupling to matter fields
Antusch Stefan, Antusch Stefan, Nolde David, Orani Stefano (2013), Hilltop inflation with preinflation from coupling to matter fields, in Journal of Cosmology and Astroparticle Physics, 2014(5), 1.
Non-unitarity of the leptonic mixing matrix: Present bounds and future sensitivities
Antusch Stefan, Antusch Stefan, Fischer Oliver (2013), Non-unitarity of the leptonic mixing matrix: Present bounds and future sensitivities, in Journal of High Energy Physics, 2014(10), 1-29.
Towards predictive flavour models in SUSY SU(5) GUTs with doublet-triplet splitting
Antusch Stefan, Antusch Stefan, De Medeiros Varzielas Ivo, Maurer Vinzenz, Sluka Constantin, Spinrath Martin (2013), Towards predictive flavour models in SUSY SU(5) GUTs with doublet-triplet splitting, in Journal of High Energy Physics, 2014(9), 1.

Collaboration

Group / person Country
Types of collaboration
MPI für Physik, München Germany (Europe)
- in-depth/constructive exchanges on approaches, methods or results
University of Southampton Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
SISSA Italy (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
CERN Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
University of Granada Spain (Europe)
- in-depth/constructive exchanges on approaches, methods or results
University of Melbourne Australia (Oceania)
- in-depth/constructive exchanges on approaches, methods or results

Associated projects

Number Title Start Funding scheme
137513 Matter, Forces and the Universe 01.10.2011 Project funding (Div. I-III)
163036 Matter, Forces and the Universe 01.10.2015 Project funding (Div. I-III)
137513 Matter, Forces and the Universe 01.10.2011 Project funding (Div. I-III)

Abstract

What is the fundamental theory of matter, forces and the universe? This question underlies the continues effort in theoretical and experimental particle physics to probe and extend the present knowledge, described by the so-called Standard Model of elementary particles. It is the aim of the proposed research to contribute towards the development of a more fundamental theory "Beyond the Standard Model", to resolve the open issues of the Standard Model. The project is subdivided into three subprojects which focus on the following challenges: (A) the origin of neutrino masses, (B) the flavour puzzle and the unification of forces and (C) the interplay of particle physics and early universe cosmology. In the planned research, (i) new ideas for resolving these challenges will be developed and existing ideas will be improved and explored. Based on these ideas, (ii) new theoretical models will be built and their predictions for observables at future and ongoing experiments will be derived. The necessary tools for accurate model analysis will be further developed. In addition, (iii) new connections between the three research directions (A), (B) and (C) will be explored. The theoretical models developed in the planned projects can be tested by the forthcoming experimental data from the LHC as well as from precision neutrino experiments, flavour experiments and cosmological observations.
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