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Positronium

Positronium (Ps) is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium. Unlike hydrogen, the system has no protons. The system is unstable: the two particles annihilate each other to predominantly produce two or three gamma-rays, depending on the relative spin states. The energy…

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Overview

States

Energy levels

Formation and decay in materials

History

Exotic compounds

Natural occurrence

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Map overview Semantic statistics

Positronium

Nodes74
Edges73
Triples47
Avg. degree1.97
Density0.027027
Components1

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Positronium

Top relations

related to history · 12
Positronium → Arthur Ruark, Astronomische Nachrichten, Dirac's, In, John Wheeler, Many, Martin Deutsch, MIT, Mohorovičić’s, Stjepan Mohorovičić, The Croatian, While
related to Formation and decay in materials · 8
Positronium → After, Approximately, During, In, It, Only, The, This
related to Energy levels · 6
Positronium → Bethe, Breit, In, Planck, Salpeter, While
related to States · 6
Positronium → It, MeV, Ms, Para-positronium, Ps, The
related to Exotic compounds · 5
Positronium → Allen Mills, Molecular, Molecules, PsH, The
related to External links · 5
Positronium → Martin Deutsch, PhysicsThe Search, PositroniumObituary, The, The Feynman Lectures
related to Natural occurrence · 2
Positronium → Likewise, The
see also · 2
Positronium → Antiprotonic, Dirac
instance of · 1
Positronium → including exotic varieties

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Important terminology

energy electron annihilation positron two decay hydrogen ns lifetime state atom levels also form bound particles states gamma rays ortho-positronium

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
positroniuminstance ofincluding exotic varieties0.80text
Positroniumrelated to Energy levelsWhile0.60section
Positroniumrelated to Energy levelsBethe0.60section
Positroniumrelated to Energy levelsSalpeter0.60section
Positroniumrelated to Energy levelsBreit0.60section
Positroniumrelated to Energy levelsIn0.60section
Positroniumrelated to Energy levelsPlanck0.60section
Positroniumrelated to Exotic compoundsThe0.60section
Positroniumrelated to Exotic compoundsAllen Mills0.60section
Positroniumrelated to Exotic compoundsMolecular0.60section
Positroniumrelated to Exotic compoundsMolecules0.60section
Positroniumrelated to Exotic compoundsPsH0.60section

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