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Quarks Influenced by Their Neighborhood
November 20, 2009
The quark structure inside protons and neutrons changes based on the local nuclear environment, according to electron accelerator experiments.
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Karl-Heinz Kampert
Karl-Heinz Kampert holds the chair of particle astrophysics in the Department of Physics at the University of Wuppertal, Germany. His prime research interests are cosmic-ray and neutrino physics conducted within the Pierre Auger, KASCADE-Grande, and IceCube Projects. In each of these projects he was responsible for design and construction of major hardware components. His previous faculty positions were at Karlsruhe University and Forschungszentrum, and at Münster University. Before starting to work on particle astrophysics, he conducted ultrahigh-energy heavy-ion reactions as a postdoc and visiting scientist at CERN, Brookhaven, and at the Lawrence Berkeley National Laboratory.
Puzzling hot spots in the cosmic-ray sky
Unusual localized excess fluxes of cosmic rays of unknown origin have been observed at an energy of 10 TeV. Several explanations are being considered, but none are convincing. Read More »