Tag

Alice

All articles tagged with #alice

science1 year ago

ALICE Discovers Antimatter Counterpart of Hyperhelium-4

The ALICE collaboration at the Large Hadron Collider has found the first evidence of antihyperhelium-4, the heaviest antimatter hypernucleus observed at the LHC, with a significance of 3.5 standard deviations. This discovery, based on 2018 lead-lead collision data, supports the statistical hadronisation model's predictions and contributes to understanding the matter-antimatter asymmetry in the universe. The findings also include evidence of antihyperhydrogen-4 and confirm equal production of matter and antimatter at LHC energies.

Insights into Charm and Beauty Particles in Quark-Gluon Plasma Revealed by ALICE Measurements
physics2 years ago

Insights into Charm and Beauty Particles in Quark-Gluon Plasma Revealed by ALICE Measurements

The ALICE collaboration at CERN has conducted new measurements on the dynamics of charm and beauty particles in quark-gluon plasma. By analyzing non-head-on lead-lead collisions, they compared the elliptic flow of prompt D mesons (produced right after the collisions) with that of non-prompt D mesons (produced later in the decays of B mesons). The results show that the elliptic flow of non-prompt D mesons is weaker than that of prompt D mesons, confirming expectations and shedding light on the thermalization of beauty quarks. These findings pave the way for further measurements in the future.