Allgemein

Saskia Plura accepted as a new junior member of the Gutenberg Academy

The Gutenberg Academy of the Johannes Gutenberg University regularly supports up to 25 outstanding doctoral students and artists. In addition to interdisciplinary exchange and financial support for conference participation, for example, the junior members can benefit above all from the exchange with established scientists, as well as other renowned people from politics, business and society.

In order to be accepted as a junior member of the Gutenberg Academy, a two-stage selection process must be completed. We are happy to announce that this year Saskia Plura, PhD student in the group of Prof. Achim Denig, was successful in this process!

Saskia Plura's PhD research focuses on searches for light dark matter particles in existing data from the BESIII experiment and also prepares future searches for such particles at the DarkMESA experiment using detailed simulation studies.

Completed Doctoral Dissertation at the Institute of Kernphysik

April 18, 2023

We congratulate Dr. Oleksandra Deineka on completing her PhD dissertation titled

Coupled-channel dynamics in hadronic systems

This thesis is dedicated to the dispersion relation approach, which is built upon the  unitarity and analyticity properties of the scattering matrix.  We apply it to study the pion-pion and pion-kaon scattering, in which the lightest scalar resonances show up. The knowledge of the pion-pion amplitude allows us to perform an analysis of the double-virtual photon-photon scattering to two pions, which contributes to the hadronic light-by-light scattering part of the anomalous magnetic moment of the muon. We also consider the two photon fusion reaction with D-meson pair in the final state, which is expected to contain two charmonium resonances.

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Outstanding success for the Theory Group

Two master's theses appeared in the 2022 announcement of Springer Spektrum's "BestMasters"-Program
Both theses in the Master's of Education Program in Physics were completed under the supervision of Prof. Dr. Stefan Scherer. Lukas Scharfe's thesis was supervised in cooperation with Dr. Moritz Rahn at the Institute of Mathematics at JGU and was simultaneously accepted as a thesis for a B.Sc. in Mathematics.

Emmy Noether Junior Research Group of Dr. Franziska Hagelstein

February 11 is the International Day of Women and Girls in Science: A good occasion to introduce our new junior research group leader Dr. Franziska Hagelstein and her research. Franziska Hagelstein studied physics at the Johannes Gutenberg University Mainz (JGU) and received her PhD in theoretical nuclear physics there in 2017 under the supervision of Prof. Marc Vanderhaeghen and Dr. Vladimir Pascalutsa. After several years of research at the University of Bern and the Paul Scherrer Institute in Switzerland, she returned to JGU in 2022 and has since been leading the Emmy Noether Young Investigator Group "Hadronic Contributions to Precision Observables and the Search for New Physics" at the Institute of Nuclear Physics. She currently supervises two PhD students and is supported in her research by a postdoc - Dr. Vadim Lensky.

According to her own statement, JGU is an almost optimal place for her research, because on the one hand she finds here an inspiring exchange with the colleagues in the large theory group and at the same time has the proximity to collaborations from experimental nuclear and atomic physics, such as in the experiments for proton form factor (A1 collaboration , JGU) and proton polarizability measurements (A2 collaboration , JGU) at the electron accelerator MAMI, or the spectroscopy experiments on normal and muonic atoms (group around Prof. Randolf Pohl , JGU). Particularly exciting is that these experiments play a central role in the so-called "proton radius puzzle".

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Dissertation at the Institute of Nuclear Physics on the top of exotic particles

27 September 2022

We congratulate Ms. Bianca Savino on completing her dissertation titled

"Development of Λ baryons reconstruction and its application to the search for a stable hexaquark at Belle II"

This thesis focuses on the search for a hypothetical particle composed of six quarks in the context of the particle physics experiment Belle II in Japan. The possible existence of such a state would help us to better understand the behaviour of matter under extreme circumstances.
The work can be divided into two main parts: the optimization of the Belle II software deployed in the reconstruction of tracks originating far from the main interaction point; and the subsequent sensitivity study for the search for the six-quark state, heavily relying on such tracks.

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4. Mainz Science Week – Science Tram

19.09.22

(c) Landeshauptstadt Mainz

Last Friday afternoon, the guests of the Mainz Science Tram experienced an entertaining and informative ride. Various scientists from Mainz introduced them to very different fields of research on the tour through Mainz. Professor Achim Denig from the Institute of Nuclear Physics was also on board with his lecture "Quarks & Co - The fabulous world of the smallest particles". With a wink, he pointed out to the audience at the beginning that the lecture was of course not about (food) quark, but about the building blocks of which all matter, whether humans, galaxies or food quark, is composed. In the past decades, nuclear and particle physics have succeeded in identifying the basic building blocks of matter - the so-called elementary particles - and in describing their interaction with each other in the Standard Model of particle physics. These elementary particles include quarks, which exist in six types and form the basis for protons and neutrons.

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4. Mainz Science Week

08.09.22

The Institute of Nuclear Physics is taking part in the Mainz Science Week! During a guided tour on 17.09.22 you will have the opportunity to experience the Mainz Microtron MAMI, an electron accelerator, on the JGU campus. We will show you the path the electrons take through the accelerator from their generation to the various experiments, explain the principle of a racetrack microtron and give you an insight into the experiments we use for our research.

Join us 11m deep underground and experience impressive technology and exciting physics!

Information on registration and organisational details can be found on the Mainz Science Week website. The number of participants is limited.

Training as IT specialists at the Institut for Nuclear Physics completed

24 August 2022

To perform research at the frontier of knowledge, it is necessary to have excellent scientists and an extensive technical infrastructure with well-trained specialists. For this reason, the Institute for Nuclear Physics has, for many years, provided training for young people in technical and mechanical professions, such as IT specialists.

This year, Jonas Bissantz and Jonas Steiner successfully completed their training as IT specialists, focusing on system integration at the Institute for Nuclear Physics. Mr. Bissantz’s project topic concerned the "Integration of an IP-KVM Solution for Remote Maintenance of Servers and Workstation Computers", an inexpensive "Keyboard-Video-Mouse" hardware based on RaspberryPis. In his project, Mr. Steiner dealt with the "Re-implementation of a Self-Hosted Warehouse Management System (WMS) on Existing Hardware".

We congratulate them both on the successful completion of their training and wish them all the best for their future careers!

TALENT School comes to Mainz

17 August 2022

From July 25th to August 12th, 2022, the TALENT School on “Effective Field Theories in Light Nuclei: From Structure to Reactions” took place in Mainz. Sponsored by MITP, this event was organized by Prof. Pierre Capel and Prof. Sonia Bacca from the Institute of Nuclear Physics. Lectures were held in the conference room at the Helmholtz Institute Mainz.
32 students from 10 different countries (Belgium, Brazil, Canada, France, Germany, Iran, Israel, Italy, Spain, and USA) came together to learn the most modern techniques for tackling few-body sys-tems in nuclear physics. Students also had the opportunity to visit the MAMI facility and see the MESA construction site. After being galvanized by this experience, they are going back to their home institutions with more knowledge, more professional connections and new friends.
We wish them all the best and hope to see them again in Mainz in the near future!

Particle physics projects for teenagers

9 October 2019
Johannes Gutenberg University Mainz (JGU) becomes a hub within the framework of the initiative „Netzwerk Teilchenwelt“

„Netzwerk Teilchenwelt“ gets immediate support in terms of personnel and content: 30 research institutes, which reach out to schools throughout the nation on research into the physics of the smallest elements, can now rely on so-called hubs at the universities of Bonn, Mainz and Münster, which will develop new programmes and activities for youngsters from the area of hadron and nuclear physics as well as coordinate regional programmes.  More (in German) ...

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