Archive

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!

Dissertation at the Institute of Nuclear Physics on Higher Order Corrections to Processes in the Standard Model

20 July 2022

We congratulate Dr. Matthias Heller on completing his dissertation titled

"Radiative corrections to Compton processes on the proton and to the Drell-Yan process"

In this thesis, Matthias Heller calculated radiative corrections to two fundamental processes of the Standard Model: the Compton process on the proton and the Drell-Yan process. Experimentally, the Compton process is the most important tool to study structure functions and other intrinsic properties of the proton. The Drell-Yan process on the other hand, is one of the most basic processes measured at the LHC at CERN and has a long history for probing the theory of strong interactions.

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Dissertation at the Institute of Nuclear Physics on Exotic Mesons and Dispersive Formalism

20 July 2022

We congratulate Dr. Daniel Alberto Stanischesk Molnar on completing his dissertation titled

"The Role of Exotic Mesons and Final State Interactions in e+e− Collisions"

In recent years, a plethora of new resonances has been discovered in the charmonium region, which cannot be interpreted in a simple quark model picture as states consisting of a charm quark and an anti-charm quark. A study of the reaction dynamics through which such states are produced is crucial to understanding the intrinsic properties of these exotic resonances and for shedding light on their nature. Daniel Molnar used a state-of-the-art approach to investigate three reactions in which charged exotic states were observed by the BESIII Collaboration in electron-positron collisions, achieved a physical description of the current experimental data, and furthermore made predictions to be tested in future experiments.

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International Physics School on Muon Dipole Moments and Hadronic Effects — in Memoriam Simon Eidelman – with more than 70 participants organized by JGU Mainz

18 September 2021

The concept of this school was to bring together young researchers involved in the global effort of investigating the large excess of the measured value of the muon anomalous magnetic moment over the Standard Model prediction. Earlier this year, the Muon g-2 experiment at Fermilab released their long-awaited result which, to everyone's excitement, showed a strengthening of the discrepancy with the Standard Model (in total 4.2 standard deviations). This result fortified both the possibility of New Physics and the strong interest in this school. ...

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) ...