Scattering experiments have been one of the main sources of information on hadron-hadron interactions. They provide a large amount of data on nucleon-nucleon potentials but a limited amount for hyperon-nucleon and hyperon-hyperon pairs.
The understanding of interactions amongst baryon and anti-baryons as well rely on an even smaller set of data involving mostly nucleon-antinucleon...
For 20 years the Pierre Auger Observatory is measuring ultra-high energy cosmic rays. Among the early discoveries was the confirmation of a strong suppression of the flux of cosmic rays at energies beyond 10EeV. If cosmic rays were mostly protons of extragalactic origin, as it was supposed, such a suppression is expected from the absorption of cosmic rays in the CMB. However, subsequent...
Low-energy cosmic anti-deuterons are unique probe for search of exotic processes in the Universe such as Dark Matter annihilation, since the production rate of these ions through secondary processes in interstellar medium is very low. However, the lack of experimental data at low energies hampers precise predictions of the expected anti-deuteron fluxes near Earth, with both anti-deuteron...
The PUMA project (antiProton Unstable Matter Annihilation) aims at using low energy antiprotons to probe the tail of the radial density of short-lived nuclei. With PUMA, the ratio of proton and neutron annihilations after capture will be determined, giving access to a new observable to quantify the ratio of proton to neutron densities at the nuclear periphery. PUMA aims at transporting one...
The momentum distribution in the final state of ion collisions is explained by the collective evolution of the initial energy density in a heavy-ion experiment. Due to the low statistic in a single event, this model is tested by studying many events. Consequently, the observation is convoluted by statistical fluctuation which contains information about the statistical properties of the initial...
The Belle II experiment at SuperKEKB, an asymmetric $e^+e^-$ collider, has a rich program of Standard Model and Beyond the Standard Model physics.
The collider, a next generation B factory, started operation in 2016 and successfully commissioned with first collisions in April 2018. In 2019 a first physics run with the full Belle II detector has taken place. Ultimately
SuperKEKB will reach...
