The physicists are also searching for other possible sources of spin. In 2011, they reported the first measurements at RHIC of so-called sea quarks, virtual quark-antiquark pairs that form when ...

A boson is a subatomic particle with an angular momentum (spin) that has integer values ... protons are massive enough to decay into top quark-antiquark pairs, or tt-bar. If this happens, protons ...

Although they are connected with gluons, quarks differ in that their quantum spin is 1/2 ... the pair annihilate and release a quark and an antiquark. The two quarks are unable to escape each ...

The angular momentum of the solar system consists of the sum of the spin of planets about their axes as well as their orbital motion around the sun. Quarks, antiquarks and gluons confined within ...

The team found that multiple particle states sharing the same degree of spin – aka angular momentum ... made up of two quarks ...

You could, in principle, have a W-boson decay into a quark-antiquark combination (like a ... something that requires both spin and electric charge. We’ve been able to measure its magnetic ...

The hypoethical particle, known as toponium, would be the result of merging a top quark and antiquark as well as the last missing example of quark-antiquark states known as quarkonium. Toponium ...