News

Germanium detector mounted on a PEN holder: The transparent plate also carries the electronic components for signal detection. (Photo: M. Willers/MPP)

Industrial plastic optimizes background detection in LEGEND

The LEGEND 200 experiment is set to search for extremely rare neutrinoless double beta decay. Finding it could answer a central physics question: is the neutrino its own antiparticle? To detect the decay, scientists use highly sensitive Germanium…

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The spectrometer of the KATRIN experiment, set to measure the neutrino mass. (Photo: M. Zacher/KIT)

Search for sterile neutrinos: It's all about a bend in the curve

There are many questions surrounding the elementary particle neutrino, in particular regarding its mass. Physicists are also interested in whether besides the “classic” neutrinos there are variants such as the so-called sterile neutrinos. The KATRIN…

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Team work in the clean room: MPP employees are mounting an optical measuring system onto the drift tube layers. It monitors potential deformations due to the self-weight of the muon chamber. The signal wires in the drift tubes are positioned with an accuracy of 1 hundreth of a millimeter. (Photo B. Wankerl/MPP)

ATLAS muon chambers in series production

Despite the corona pandemic, the production of next-generation ATLAS muon chambers at the Max Planck Institute for Physics (MPP) is proceeding as planned. Due to the current contact restrictions, the technicians are only permitted to work in shifts…

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Cluster algebras are interconnected sets of formulas. They were developed from “toy models”, and used for a genuine quantum field theory for the first time. (Graphic: Carolin Leyck)

How mathematical detective work opens up new paths in particle physics

Theoretical particle physicists sometimes compare Feynman integrals to “wild beasts”. Three physicists have now succeeded in partially taming these wild beasts with the help of mathematics. Their scientific achievement should make theoretical…

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Belle II: Picking the best data cherries with neural networks

The Belle II detector records about 5,000 collision events per second. However, only a fraction of these are of interest for physical questions. In order to distinguish the real signals from unusable data, the experiment uses “triggers”. Since the…

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Photo: M. Kuhlmann/MPP

MPP launches the Hanrieder Research Fellowship

The Max Planck Institute for Physics, together with the Hanrieder Foundation for Excellence, is initiating a new funding program. The Hanrieder Research Fellowship aims to support junior physicists from countries in Latin America in a targeted way.…

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3D design drawing of COSINUS in the Gran Sasso underground lab (LNGS) (Image: L. Giaffoni/U. di Sabatini/R. Stadler)

A new dark matter experiment: The search for a stand-alone signal

Until now, all experiments have been unable to detect the mysterious dark matter. All? Not quite. The DAMA experiment has been providing reliable signals for more than 20 years. The problem: To speak of a discovery in science, signals of dark matter…

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Students in the MPP's lecture hall. This will not be the case for the Masterclasses 2021: All events take place in a virtual format. (Photo: B. Wankerl/MPP)

Masterclasses: three digital workshops for high school students

Researching particle physics

First hand research: In February and March, three particle physics courses will be held for high-school students. On these days, participants will learn about research methods, identify elementary particles in particle collisions, and “visit”…

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The last measurements of the GERDA experiment were analyzed and published in 2020. The phote shows the experiment's opening in 2010. (Photo: MPP)

Final results and completion of the GERDA experiment

The search for neutrinoless double-beta decay continues with new LEGEND experiment

The GERDA experiment designed to prove the existence of neutrinoless double beta decay is coming to an end. The research collaboration has now evaluated the full data set produced by the experiment and published it in Physical Review Letters. Even…

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Test setup of the MADMAX experiments: At the transition between air and the disc material, the photon fraction generates radio waves that can be measured (Photo: MADMAX Collaboration)

Search for axions: MADMAX test setup at CERN

Whether axions exist is still up for debate. If they do exist, two open questions in particle physics could be resolved: The puzzle of what dark matter is made of – and the question of why the strong interaction, one of the four known forces in the…

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