Noun
an unstable negatively charged proton; the antiparticle of a proton
Source: WordNetFor example, just as a proton is made of two up-quarks and one down-quark, its corresponding antiparticle, the antiproton, is made of two up-antiquarks and one down-antiquark. Source: Internet
In 1976, he suggested adapting CERN's Super Proton Synchrotron (SPS) to collide protons and antiprotons in the same ring and the world's first antiproton factory was built. Source: Internet
It takes the antiprotons from the antiproton decelerator and cools them to 90 KeV which is "cold" enough to study. Source: Internet
It was under his guidance that the original accelerator was replaced with the Tevatron, an accelerator capable of colliding proton and an antiproton at a combined energy of 1.96 TeV. Source: Internet
For example, the charges of a proton and antiproton must sum to exactly zero. Source: Internet
In 2016 a new antiproton decelerator and cooler called ELENA (E Low ENergy Antiproton decelerator) was built. Source: Internet