antihydrogen


Also found in: Dictionary, Wikipedia.
Related to antihydrogen: antihelium

antihydrogen

[¦an·tē′hī·drə·jən]
(atomic physics)
The antimatter counterpart of hydrogen, whose atoms each consist of an orbiting positron and a nucleus that is an antiproton, antideuteron, or antitriton.
References in periodicals archive ?
"What we're looking for is (to see) if hydrogen in matter and antihydrogen in antimatter behave in the same way," Jeffrey Hangst of the ALPHA experiment at the European Organization for Nuclear Research (CERN), said in a statement.
The ALPHA experiment reports a measurement of the electric charge of antihydrogen atoms, finding it to be compatible with zero to eight decimal places.
Alpha was the first experiment to trap atoms of antihydrogen - neutral antimatter atoms held in place with a strong magnetic field for up to 1,000 seconds.
Antihydrogen is made of an antiproton and a positron.
The CERN team did so by using a powerful magnetic bottle that held an atom of antihydrogen in its grip for 170 milliseconds.
The Switzerland-based research institute, also known as CERN, said on Wednesday it had produced antihydrogen atoms - the opposite of a hydrogen atom - in a magnetic trap and kept them viable for more than 170 milliseconds.
[17] have recently found a new kind of intermolecular interaction known as antihydrogen bond.
Concerned with antiproton beams with kinetic energies of order keV or less, the papers delve into such topics as CPT symmetry and gravitation, the structure of exotic nuclei, atomic collisions, and atom physics in general, with particular focus on recent advances in manipulating large numbers of ultra-slow antiprotons and synthesizing antihydrogen atoms.
EU Research Commissioner Philippe Busquin congratulated Geneva-based CERN (European Organisation for Nuclear Research) on September 19 on its success in securing for the first time controlled production of a substantial amount of antimatter: 50,000 atoms of antihydrogen. After mixing cold clouds of trapped positrons and antiprotons - the antiparticles of the familiar electron and proton - under closely-monitored conditions, researchers identified antihydrogen atoms, formed when positrons bind together with antiprotons.
Their strategy is to deny access to a natural source of antihydrogen, a necessary fuel source for Earth's ships.
A single atom of antimatter - in particular, antihydrogen - may unlock fundamental mysteries of our universe and could lead to revolutionary advances in medicine and space travel.