Antiproton path to nuclear suburbs.One way to study the distribution of neutrons and protons at the periphery of an atomic nucleus Atomic nucleus The central region of an atom. Atoms are composed of negatively charged electrons, positively charged protons, and electrically neutral neutrons. is by shooting antiprotons into a target made up of a single isotope such as nickel-58. A nickel nucleus could then capture an antiproton an·ti·pro·ton n. The antiparticle of the proton. antiproton The antiparticle that corresponds to the proton. Noun 1. , which would go into orbit around the nucleus. At some point, an orbiting antiproton may approach a neutron or proton from the nucleus closely enough for the particles to annihilate an·ni·hi·late v. an·ni·hi·lat·ed, an·ni·hi·lat·ing, an·ni·hi·lates v.tr. 1. a. To destroy completely: The naval force was annihilated during the attack. each other. Annihilation of a neutron produces nickel-57, whereas destruction of a proton creates cobalt-57. Recent experiments determining which isotope prevails, says F. Joachim Hartmann of the Technical University of Munich Munich University of Technology, or Technical University of Munich (TUM) (in German: Technische Universität München, TUM), is a major German university located in Munich (and the towns of Garching and Freising outside of Munich). , have shown that there are more neutrons than protons at the fringes of the nucleus. |
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