Hadron Spectroscopy and the New Unexpected Resonances

Brazilian-German WE-Heraeus-Seminar

22 Sep - 28 Sep 2024


Pousada Villas de Paraty, Paraty, RJ, Brazil

Scientific organizers:

Prof. Dr. Ulrich Wiedner, RU Bochum, Germany • Prof. Dr. Bruno El-Bennich, UFSP, São Paulo, Brazil

In the Standard Model of particle physics, all the forces that make up the different interactions show basically the same behavior, with a force proportional to the inverse-square of the distance. The proper sets of theories are called gauge theories. The strong interaction, however, is different from the other interactions due to its non-perturbative character and the still unexplained confinement of quarks and gluons and dynamical mass generation in hadrons.

To explore these fundamental questions in the fascinating and not well-understood strong sector of the Standard Model is at the heart of hadron physics and of this workshop. The tool being discussed at this workshop is the spectroscopy of hadronic resonances. Spectroscopy experiments in the past laid the foundation for the quark model and showed completely unexpected results going beyond the naïve quark model expectations by experimentally identifying so-called exotic states. This, on the other hand, clearly opens up the possibility to get a deeper understanding of the strong interaction in the non-perturbative regime that is not part of the Standard Model, if these new states of matter can be classified in an appropriate way. We will present and discuss the current status and open problems, both experimentally and theoretically. Modern hadron physics requires significant resources and is therefore an international endeavor. However, this asks for the brightest heads and a sustainable training of young researchers.

The workshop aims at the development of a common physics program on hadron physics for the future by identifying and prioritising experimental goals together with the appropriate theoretical calculations and support. We will look at common experimental and theoretical physics topics for young researchers at different levels and learn about existing technologies in the countries. We aim at a two-way support in the development of Monte Carlo simulations and advanced software based on AI methods for a sustainable use of energy and resources. Last not least, the workshop is an excellent opportunity to explore the possibility of participating in programs in the two countries to promote the scientific careers of young researchers, also in the partner country.

There is no participation fee and the Wilhelm and Else Heraeus-Foundation bears the cost of full-board accommodation for all participants.