Collider experiments at ultra-relativistic energies, such as those studied by the ALICE experiment at the LHC, allow to study the properties of light antinuclear such as antiproton, antineutrons and even anti helium, since the center of mass energy reached in these collisions is sufficient to produce abundant antimatter yields . In this seminar we will discuss about how the different production mechanism of antinuclei can be studied, together with the annihilation cross-section of antinuclei when they meet ordinary nuclei and how these information are essential to study the different sources of antinuclei in our Universe. Indeed, antiprotons have been already been observed in satellite experiments and search of antineutrons and antihelium are currently ongoing. These antinuclei can be produces by collisions of high energy cosmic rays with the interstellar medium, but might also stem from the annihilations of dark matter!
We will see how the studies at accelerators conducted within the ALICE collaboration can help to shed light on the antinuclei detection in our Universe.
This is a VIDEO COLLOQUIUM!
Connection Details:
https://desy.zoom.us/j/99616528733
Meeting ID: 996 1652 8733
Meeting Password: 733220