i-matter that cannot be observed by us.The ChemistryThough they have no charge, anti-neutrons differ from neutrons in having opposite 'spin' and 'baryon number'. All heavy particles, like protons or neutrons, are called baryons. A firm rule is that the total baryon number cannot change, though this apparently fails inside black holes. A neutron (baryon number +1) can become a proton (baryon number +1) and an electron (baryon number 0 since an electron is not a baryon but a light particle). The total electric charge stays at zero and the total baryon number at +1. But a proton cannot simply be annihilated.A proton and anti-proton (baryon number -1) can join together in an annihilation of both. The two heavy particles meet in a flare of energy and vanish, their mass converted to high-energy radiation wile their opposite charges and baryon numbers cancel out. We can make antiprotons in the laboratory by turning this process round, using a particle accelerator to smash protons together at such enormous energies that the energy of collision is more than twice the mass/energy of a proton. The resulting reaction is written:p + p p + p + p + pTwo protons (p) become three protons plus an antiproton(p); the total baryon number before is:1 + 1 = 2 And after the collision it is: 1 + 1 + 1 - 1 = 2 Still two.Anti-matter elements have the same properties as matter properties. For example, two atoms of anti-hydrogen and one atom of anti-oxygen would become anti-water.The ArticleThe article chosen reflects on recent advancements in anti-matter research. Scientists in Switzerland have begun experimenting with a LEAR device (low energy anti- proton ring) which would slow the particle velocity by a billionth of its original velocity. This is all done in an effort to slow the velocity to such a speed where it can combine chemically with positrons to form anti-hydrogen.The author of the article, whose name was not included on the article, failed to investiga...
