News

The T2K experiment has started data taking using the enhanced neutrino beam and new neutrino near-detectors. The stable operation of neutrino beam has been successfully achieved at a record high beam intensity (about 710 kW). The new neutrino detectors that can measure neutrino interactions with even higher precision than before. The newly installed detectors consist of SuperFGD and a High-Angle TPC. The ETHZ group has played a major roles in these activitities.

Dr. Paolo Crivelli, a Senior Scientist in the group since several years, was promoted with the title of Adjoint Professor. Paolo Crivelli is an internationally acclaimed specialist in exotic atoms and dark matter. He investigates these by means of high-​​precision experiments. He was awarded an ERC Consolidator Grant for his research.  We congratulate!!!

Published in Nature, the results are a major step forward in the study of difference between matter and antimatter in the Universe.

The origin of the violation of parity symmetry in weak interactions is still a great mystery. Could there be a Mirror world of ours such that overall parity is conserved in Nature? Using our unique positron infrastructure at ETHZ to create positronium, we have searched for its disappearance into its Mirror state. With extremely high sensitivity, we could exclude this process by an order of magnitude compared to previously existing studies. The search for Mirror Matter has been pushed further!

T2K published a new measurement of the differential cross sections of muon neutrino charged-current interactions on carbon with a single positively charged pion. While agreement with the models is generally good, data shows a significant discrepancy in the so-called low Q² region.