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ppbar. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
p + pbar
Noun
ppbar
- (physics) proton and antiproton (used attributively to describe a collision or other interaction of these two particles)
2015, Christine O. Rasmussen, Torbjörn Sjöstrand, “Hard Diffraction with Dynamic Gap Survival”, in arXiv:Comparisons with ppbar and pp data reveal improvement in the description of single diffractive events..