Bernhard Ketzer
Prof. Dr. rer. nat. Bernhard Ketzer
  • Helmholtz-Institut für Strahlen- und Kernphysik
  • Faculty of Mathematics and Natural Sciences
Research topics
  • Experimental hadron physics with electromagnetic and hadronic probes: hadron structure and spectroscopy
  • Physics beyond the Standard Model with hadron physics methods: search for Dark Photons
  • Detector physics: development of high-resolution, fast Micropattern Gaseous Detectors and readout electronics
Our research focuses on the physics of the strong interaction, the strongest of the four fundamental forces in nature. According to the Standard Model of particle physics, hadrons are composite objects consisting of quarks and gluons bound by the strong interaction. Hadrons consisting of the two light quark flavors, up and down, make up for almost all of the mass of the visible universe. Only a small fraction of this mass, however, is due to the Higgs mechanism. The vast majority of the mass of hadrons is due to the strong interaction. Exactly how the masses or other properties of hadrons are generated by the strong interaction is one of the great puzzles of physics. In our experiments, we are also looking for new phenomena like exotic configurations of quarks and gluons and dark matter candidates.
Selected publications

B. Ketzer, B. Grube and D. Ryabchikov (2020) Light-Meson Spectroscopy with COMPASS. Invited review article, Prog. Part. Nucl. Phys. 113:103755.

M. Mikhasenko, B. Ketzer and A. Sarantsev (2015) Nature of the a1(1420). Phys. Rev. D 91:094015. 

B. Ketzer (2013) A Time Projection Chamber for High-Rate Experiments: Towards an Upgrade of the ALICE TPC. Nucl. Instr. Meth. A 732:237.



Bernhard Ketzer
Prof. Dr. rer. nat. Bernhard Ketzer
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