# Project

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## Matter, Forces and the Universe

 Applicant Antusch Stefan 137513 Project funding (Div. I-III) Departement Physik Universität Basel University of Basel - BS Particle Physics 01.10.2011 - 30.09.2013 356'502.00
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### All Disciplines (3)

Discipline
 Particle Physics
 Astronomy, Astrophysics and Space Sciences
 Theoretical Physics

### Keywords (4)

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

### Lay Summary (English)

Lay summary
What is the fundamental theory of matter, forces and the universe? This question underlies the continues effort in theoretical and experimental particle and astro-particle physics to probe and extend the present knowledge, described by the so-­called "Standard Model" of elementary particles. Despite the great success of the Standard Model, it leaves various questions unanswered, regarding, for instance, the observed small neutrino masses, which are not included in the Standard Model, and the origin of the properties of the different types of elementary particles. It is the aim of the current SNF project to contribute towards the development of a more fundamental elementary particle theory "Beyond the Standard Model", which resolves its open questions, gives rise to a consistent evolution of the universe, and which can be tested by ongoing and future particle physics experiments and cosmological observations. Towards this goal, new theoretical ideas will be developed and existing ideas will be improved and explored. Based on these ideas, new theoretical models will be built and their predictions for ongoing and future experiments will be derived. The necessary tools for accurate model analysis will be further developed.
 Direct link to Lay Summary Last update: 21.02.2013

### Responsible applicant and co-applicants

Name Institute
 Antusch Stefan Departement für Physik Universität Basel

### Employees

Name Institute
 Orani Stefano Departement Physik Universität Basel

### Publications

Publication
Antusch Stefan, Gross Christian, Maurer Vinzenz, Sluka Constantin (2013), \theta^PMNS_13 = \theta_C / \sqrt2 from GUTs, in Nucl.Phys., B866, 255-269.
Gross Christian, Marques Tavares Gustavo, Schmaltz Martin, Spethmann Christian (2013), Light axigluon explanation of the Tevatron ttbar asymmetry and multijet signals at the LHC, in Phys.Rev., D87, 014004-014004.
Antusch Stefan, Nolde David (2013), Matter inflation with A_4 flavour symmetry breaking, in JCAP, (10), 28.
Antusch Stefan (2013), Models for Neutrino Masses and Mixings, in 25th International Conference on Neutrino Physics and Astrophysics (Neutrino 2012), Kyoto, JapanElsevier, Niederlande.
Antusch Stefan, Calibbi Lorenzo, Maurer Vinzenz, Monaco Maurizio, Spinrath Martin (2013), Naturalness of the Non-Universal MSSM in the Light of the Recent Higgs Results, in JHEP, 01, 187-187.
Antusch Stefan, King Stephen F., Spinrath Martin (2013), Spontaneous CP violation in $A_4 \times SU(5)$ with Constrained Sequential Dominance 2, in Phys.Rev., D87, 096018-096018.
Antusch Stefan, Dutta Koushik, Halter Sebastian (2012), Combining High-scale Inflation with Low-energy SUSY, in JHEP, 1203, 105-105.
Antusch Stefan, Nolde David (2012), Kähler-driven Tribrid Inflation, in JCAP, 1211, 005-005.
Antusch Stefan, Calibbi Lorenzo, Maurer Vinzenz, Monaco Maurizio, Spinrath Martin (2012), Naturalness and GUT Scale Yukawa Coupling Ratios in the CMSSM, in Phys.Rev., D85, 035025-035025.
Antusch Stefan, Nolde David, Rehman Mansoor Ur (2012), Pseudosmooth Tribrid Inflation, in JCAP, 1208, 004-004.
Behring Arnd, Gross Christian, Hiller Gudrun, Schacht Stefan (2012), Squark Flavor Implications from B --> K* l+ l-, in JHEP, 1208, 152-152.
Antusch Stefan, King Stephen F., Luhn Christoph, Spinrath Martin (2012), Trimaximal mixing with predicted \theta_13 from a new type of constrained sequential dominance, in Nucl.Phys., B856, 328-341.
Antusch Stefan, Calibbi Lorenzo, Maurer Vinzenz, Spinrath Martin (2011), From Flavour to SUSY Flavour Models, in Nucl.Phys., B852, 108-148.
Antusch Stefan, Maurer Vinzenz (2011), Large neutrino mixing angle \theta_{13}^{MNS} and quark-lepton mass ratios in unified flavour models, in Phys.Rev., D84, 117301-117301.
Antusch Stefan, Gross Christian, Maurer Vinzenz, Sluka Constantin, A flavour GUT model with $θ^{PMNS}_{13} = θ_C / \sqrt{2}$, in Nucl. Phys. B.
Nolde David, Effects of the imaginary inflaton component in supergravity new inflation, in JCAP.
Antusch Stefan, Maurer Vinzenz, Running quark and lepton parameters at various scales, in JHEP.
Antusch Stefan, Holthausen Martin, Schmidt Michael A., Spinrath Martin, Solving the Strong CP Problem with Discrete Symmetries and the Right Unitarity Triangle, in Nucl. Phys. B.
Antusch Stefan, Cefala Francesco, SUGRA New Inflation with Heisenberg Symmetry, in JCAP.

### Associated projects

Number Title Start Funding scheme
 149066 Matter, Forces and the Universe 01.10.2013 Project funding (Div. I-III)
 149066 Matter, Forces and the Universe 01.10.2013 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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