Particle accelerator cern new particle illusion

Together with his research group and colleagues at the Technical University of Munich, the physicist has now put the data through a new analysis.

'This new short-lived intermediate state, however, appeared to consist of four quarks.' 'Particles normally consist either of three quarks - this includes the protons and neutrons, for example - or, like the pions, of one quark and one antiquark,' says Ketzer. It seemed to indicate that the collision had created an exotic new particle for a few fractions of a second. In 2015, COMPASS detectors registered an unusual signal after such a crash test. 'Experiments like these therefore provide us with important information about the strong interaction.' Bernhard Ketzer of the Helmholtz Institute for Radiation and Nuclear Physics at the University of Bonn. 'This is converted into matter, which creates new particles,' explains Prof. The 'stretching energy' stored in it is released all at once. However, the impact of the pion on the hydrogen nucleus is so strong that this rubber band breaks. With the strong interaction it is different: It increases in line with the distance, similar to the tensile force of a stretching rubber band. When magnets are moved away from each other, the attraction between them decreases successively. These are held together by the strong interaction, much like two magnets whose poles attract each other. Pions consist of two building blocks, a quark and an anti-quark. There, certain particles called pions are brought to extremely high velocities and shot at hydrogen atoms. In their study, the researchers analyzed data from the COMPASS experiment at the European Organization for Nuclear Research CERN in Geneva.

Particle accelerator cern new particle illusion