We study the strong interaction at low and medium energies. Our activities focus on the theoretical interpretation of the experiments at MAMI and at other accelerator facilities. Beside analytical methods like effective field theories and dispersion theory numerical simulations of Quantum Chromodynamics on the lattice are applied.

PRISMA+ Cluster of Excellence inaugurated

The PRISMA+ cluster of excellence has been inaugurated with a short symposium on the new physics searches at the heart of the Cluster of Excellence. The keynote lecture "Why are the weak interactions so weak?" was given by Prof. Francis Halzen. PRISMA+ is the successor to the successful PRISMA cluster of excellence that was funded from 2012 to 2018. ...

22.10.2019 - 25.10.2019
SFB School 2019

Image linkThe annual Summer School of the SFB 1044 (The Low-Energy Frontier of the Standard Model)  will take place from 22-25 October 2019 at the Hotel Ebertor in Boppard. The program will cover the current research activities of the SFB 1044. Expert lectures will be held on theoretical and experimental physics followed by contributions from graduate students and postdocs working in the SFB). ...

Outstanding Thesis Award goes to Alexandra Stillert

Alexandra Stillert received the outstanding thesis award of the Faculty 08 for her Master of Education thesis General Relativity and Black Holes (Allgemeine Relativitätstheorie und Schwarze Löcher). The thesis was supervised by Prof. Dr. Stefan Scherer and has been published in the BestMasters series at Springer.

PRISMA+ Cluster of Excellence approved

Johannes Gutenberg University Mainz (JGU) has scored a great success in Germany's Excellence Strategy program: The Excellence Commission, consisting of 39 members of the international Committee of Experts appointed by the Joint Science Conference (GWK) and the research ministers of the German federal and state governments, has approved the PRISMA+ Cluster of Excellence. The total funding is expected to amount to EUR 64 million over the next seven years. PRISMA+ is the follow-up application of the Cluster of Excellence "Precision Physics, Fundamental Interactions and Structure of Matter" (PRISMA), which was successful in the previous Excellence Initiative and has received funding since 2012. ...

27.08.2018 - 31.08.2018
MITP workshop "Scattering Amplitudes and Resonance Properties from Lattice QCD"

In recent years, Lattice QCD (LQCD) calculations of stable-hadron properties have become considerably more precise, and as a result, LQCD inputs are having an increasing impact on Standard-Model phenomenology. Considering this progress, it is natural to also examine the prospects for using lattice QCD to calculate the properties of unstable hadrons, i.e. QCD resonances that decay via the strong force. The extraction of resonance properties is much more challenging, but also in this sector enormous progress has been made in the development of both theoretical methods and numerical techniques. The aim of this workshop is to bring together experts in developing the formalism and lattice practitioners, in order to review the status of ongoing calculations and discuss future prospects. The workshop will emphasize the future role of LQCD in precision resonance physics, especially in the context of forthcoming experiments. ...

New book by Dr. Vladimir Pascalutsa

Theory group member Dr. Vladimir Pascalutsa has published a new book on sum rules and dispersion relations. Scattering of light by light is a fundamental process arising at the quantum level through vacuum fluctuations. This short book will explain how, remarkably enough, this quantum process can entirely be described in terms of classical quantities. This description is derived from general principles, such as causality, unitarity, Lorentz, and gauge symmetries. The reader will be introduced to a rigorous formulation of these fundamental concepts, as well as their physical interpretation and applications. ...

ERC Consolidator Grant for Prof. Harvey Meyer

Theory group member Prof. Dr. Harvey B. Meyer has been awarded a Consolidator Grant by the European Research Council (ERC) for his research project "Strong-interaction matter coupled to electroweak probes and dark matter candidates". The grant, which is worth €2 million over five years, is one of the most prestigious awards in Europe. ...