Maxwell's demon cooling trap measures the magnetic moment of antiprotons with higher precision than ever before ...

Taken in 2023, these results show preliminary plots of the antiproton's production cross section—the probability that ...

Why are we here? Why does anything exist? These are deep questions of philosophy, but they are also questions that physicists ...

A long-awaited calculation of the W boson’s mass agrees with theory, contradicting a previous anomaly that had raised the ...

BASE takes antiprotons that have been decelerated by the Antiproton Decelerator and the Extra Low Energy Antiproton ...

A quarter-century ago physical theory pointed to the existence of a fundamental particle of matter with the mass of the proton but the opposite charge. An account of its discovery last year ...

The antimatter heavyweight, called antihyperhydrogen-4, is made up of an antiproton, two antineutrons and one antihyperon (a baryon that contains a strange quark). Physicists found traces of this ...

The heaviest antimatter nucleus to date was spotted in a particle accelerator. It could provide new insights into the nature ...

The CMS experiment at CERN is the latest to weigh in on the mass of the W boson—an elementary particle that, along with the Z ...

In fact, it was the heaviest and most exotic antimatter nucleus ever seen. To be specific, it consists of one antiproton, two antineutrons and an antihyperon, and has the name of antihyperhydrogen-4.

CERN’s calculation of the W boson’s mass agrees with theory, contradicting a previous anomaly that had raised the possibility ...