T2K on the Nature cover page
A team of over 500 physicists from 60 universities and research institutes succeeded in proving a difference between matter and antimatter in the T2K experiment in Japan. The measurement is published in the current issue of the scientific journal "nature". The front page of the journal has been reserved for this purpose with the headline "The mirror crack'd", in German "Der Spiegel ist zerbrochen" (The mirror is broken), thus pointing to the breached mirror symmetry between matter and antimatter. The T2K experiment also involves a team from RWTH Aachen University headed by Professor Stefan Roth from the III Physics Institute B.