Using collision data from the ALICE detector at the Large Hadron Collider at CERN, the strong interaction between a proton (right) and the rarest of the hyperons, the omega hyperon (left), which contains three strange quarks, was successful measured with high precision. Image: D. Dominguez / CERN
Using collision data from the ALICE detector at the Large Hadron Collider at CERN, the strong interaction between a proton ( right ) and the rarest of the hyperons, the omega hyperon ( left ), which contains three strange quarks, was successful measured with high precision. Image: D. Dominguez / CERN High-precision measurements of the strong interaction between stable and unstable particles - The positively charged protons in atomic nuclei should actually repel each other, and yet even heavy nuclei with many protons and neutrons stick together. The so-called strong interaction is responsible for this. Prof. Laura Fabbietti and her research group at the Technical University of Munich (TUM) have now developed a method to precisely measure the strong interaction utilizing particle collisions in the ALICE experiment at CERN in Geneva. The strong interaction is one of the four fundamental forces in physics. It is essentially responsible for the existence of atomic nuclei that consist of several protons and neutrons. Protons and neutrons are made up of smaller particles, the so-called quarks.
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