Phys.org reported on Tuesday that collisions involving oxygen have shown evidence of jet quenching, a phenomenon described as a signature of the matter that existed in the early universe.
The finding, according to Phys.org, comes from experiments in which oxygen nuclei were collided. Jet quenching refers to the suppression of high-energy particle jets produced in such collisions, and it is treated as an indicator of the dense medium associated with early-universe matter.
Phys.org's report ties the result to the broader study of the state of matter that filled the universe shortly after the Big Bang. The headline and summary released by the outlet did not include further details on the experimental setup, the facility involved, or the researchers behind the work.
Jet quenching has long been discussed in connection with heavy-ion collision research, where it serves as a probe of the medium formed in such events. The new report extends that line of evidence to oxygen collisions, per Phys.org.
Because the available summary is brief, specifics such as the collision energy, the measured suppression levels, and any comparison with other collision systems were not provided.
Watch for the full Phys.org article and any accompanying publication for the experimental parameters and the researchers' interpretation of the result.
