ParticlesStrings and the

Early Universe

sfb676.desy.de

Particles, Strings and the Early Universe Collaborative Research Center SFB 676

SFB 676The Collaborative Research Center SFB 676 at the University of Hamburg and DESY is a DFG funded research program at the interface of Particle Physics, String Theory and Cosmol-ogy. Significant developments are taking place in each of these fields, and far-reaching scientific results are expected in the course of the next 20 years.

In order to benefit from the fruitful interplay between these different fields, the SFB 676 includes researchers from many different backgrounds, ranging from Particle Physics, over Astrophysics, to Mathematical Physics, Mathematics and Cosmology.

Eliminating the traditional borders between these subjects has proven to be inspirational and has led to interesting in-terdisciplinary research projects.

An Integrated Research Training Group (IRTG) provides an international graduate program for PhD students partici-pating in the research of the SFB.

Graduate Program

Integrated ResearchTraining Group

The SFB 676 offers an extensive graduate program for PhD students. This includes lectures and seminars which allow the students to specialize in their field of interest. In addi-tion to this an elected Student Council organizes events, invitations of guest scientists and trips to conferences and schools. This program is complemented by quarter-ly special lectures as well as an annual block school with invited lecturers.

Regularly offered lectures include:

Quantum Field TheoryGeneral RelativityExperimental Particle PhysicsDetector PhysicsCosmologyAstroparticle PhysicsPhysics of the Standard ModelPhysics Beyond the Standard ModelSupersymmetry and SupergravityString TheorySpecialized Research Seminars

Spokesperson:Prof. Jan LouisII. Institut für Theoretische PhysikLuruper Chaussee 14922761 Hamburg, Germany

For further information please refer tosfb676.desy.de or contact sfb676@desy.de

Collaborative Research Center SFB 676

Particles, Strings and the Early Universe Collaborative Research Center SFB 676

Research Area A

String TheoryThe main focus lies on the mathematical and particle physics aspects of String Theory, the AdS/CFT correspond-ence and its connection to QCD, together with integrable models in two-dimensional CFT.

A1 – Particle Physics from String Compactifications Wilfried Buchmüller, Jan Louis A3 – QCD and String Theory Sven-Olaf Moch, Volker Schomerus A6 – Mathematical Aspects of String Compactifications Jan Louis, Vicente Cortés A9 – Loops and Legs Bernd Kniehl, Rutger Boels A10 – TQFT from and for 4d SUSY Gauge Theories Christoph Schweigert, Jörg Teschner

A11 – Integrable Deformations of the AdS Superstring and their Dual Gauge Theories Gleb Arutyunov, Ingo Runkel, Jörg Teschner

Research Area B

Particle PhysicsThis research area is centered around particle physics and its relation to the LHC as well as to a future Linear Collider. Electroweak symmetry breaking is studied together with supersymmetry and theoretical aspects of the Standard Model and beyond.

B1 – Optimising the ILC setup: Physics programme, running scenarios and design choices Jenny List, Gudrid Moortgat-Pick B2 – Boosted Topologies and Supersymmetry Peter Schleper, Frank Tackmann B4 – Unstable Quantum Fields and Higgs Vacuum Bernd Kniehl B8 – Global SM & BSM Fits Using Results from LHC and other Experiments Johannes Haller, Georg Weiglein B9 – Probing the Nature of Higgs Physics and Electroweak Symmetry Breaking with Results from the LHC Peter Schleper, Kerstin Tackmann, Georg Weiglein B11 – Top-quark Physics at the LHC Sven-Olaf Moch, Jürgen Reuter

Research Area C

CosmologyThe main interests in cosmology are the origin of dark matter and dark energy, inflation, leptogenesis as the or-igin of the matter-antimatter asymmetry, the search for axion-like particles, aspects of cosmic magnetic fields and phase transitions in the early universe.

C1 – Axions and other very weakly interacting sub-eV particles Dieter Horns, Andreas Ringwald

C2 – Dark Matter Searches Marcus Brüggen, Dieter Horns C3 – Leptogenesis and Dark Matter Wilfried Buchmüller C6 – Scalar Fields in Cosmology: Inflation, Dark Matter, Dark Energy Jan Louis, Alexander Westphal C9 – Cosmic Magnetic Fields and their role in High Energy Physics Robi Banerjee, Günter Sigl C10 – Cosmological implications of first order phase transitions Thomas Konstandin, Günter Sigl

pictures: © DESY, CERN, GLOW