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 (ăn′tē-prō′tŏn′, ăn′tī-)
The antiparticle of the proton.


(Atomic Physics) the antiparticle of the proton; a particle having the same mass as the proton but an equal and opposite charge


(ˈæn tiˌproʊ tɒn, ˈæn taɪ-)

the antiparticle of the proton, having negative charge but the mass and spin of the proton.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.antiproton - an unstable negatively charged proton; the antiparticle of a proton
nucleon - a constituent (proton or neutron) of an atomic nucleus
References in periodicals archive ?
to the east of the existing gsi research facility (gsi helmholtz center for heavy ion research), The new next-generation accelerator complex, Fair (facility for antiproton and ion research), Is to be developed.
According to Andreas Mooser, second author of the study and member of RIKEN FSL, "Looking forward, using this technique, we will be able to make similarly precise measurements of the antiproton at the BASE experiment in CERN, and this will allow us to look for further hints for why there is no antimatter in the universe today.
Nine countries including India have come together to build the Facility for Antiproton and Ion Research (FAIR).
The single-particle detectors used in the measurements were partly developed by the Riken researchers, some of whom had previously worked on similar traps at CERN's Antiproton Decelerator.
Among the topics are the 600 MeV synchrocyclotron: laying the foundation, the intersecting storage rings: the first hadron collider, the CERN antiproton program: imagination and audacity rewarded, the large hadron collider: the energy frontier, knowledge and technology: sharing with society, and managing the laboratory and large projects.
During their stay in Geneva, the Sri Lankan physicists familiarized themselves with the several facilities in CERN, including the CERN Data Centre, the Antiproton Decelerator, the Compact Muon Solenoid (CMS), the Gas Electron Multiplier (GEM) Lab and the S'Cool lab for High School students.
that the positron is positively charged and that the antiproton carries a negative charge.
This new research, undertaken by the ALPHA experiment at CERN's Antiproton Decelerator (AD) in Geneva, is the first time that the electric charge of an anti-atom has been measured to high precision.
6 billion [euro] international project, known as the Facility for Antiproton and Ion Research (Fair), will help scientists to better understand the universe, and promises to become for nuclear physics what Cern is to particle physics.
A hydrogen atom consists of a proton and an electron, and its antimatter counterpart, antihydrogen, consists of a positron and an antiproton, both with the opposite charge of the electron and proton respectively.
Antihydrogen is made of an antiproton and a positron.
An antihydrogen atom is made from a negatively charged antiproton and a positively charged positron, the antimatter counterpart of the electron.