Observation of the antimatter helium-4 nucleus

Antimatter worth the weight The α-particle — the helium nucleus consisting of two protons and two neutrons — was identified a century ago by Ernest Rutherford. Its antimatter counterpart of two antiprotons and two antineutrons has now been detected by the Relativistic Heavy Ion Collider at Brookhave...

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Veröffentlicht in:	Nature (London) 2011-05, Vol.473 (7347), p.353-356
Hauptverfasser:	Agakishiev, H, Aggarwal, M. M, Ahammed, Z, Alakhverdyants, A. V, Alekseev, I, Alford, J, Anderson, B. D
Format:	Artikel
Sprache:	eng
Schlagworte:	639/766/33/34/124 639/766/33/34/866 ABUNDANCE ACCELERATORS ANNIHILATION ANTIMATTER ANTINEUTRONS ANTIPROTONS Atoms & subatomic particles BENCHMARKS Bias Charged particles Collisions Collisions (Nuclear physics) COSMIC RADIATION Cosmic rays ENERGY DENSITY Exact sciences and technology Gold HEAVY IONS HEAVY NUCLEI Helium HELIUM 4 Humanities and Social Sciences Indication Isotopes letter Magnetic fields multidisciplinary Nuclear Experiment NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEI NUCLEOSYNTHESIS Observations PARTICLE ACCELERATORS Physics PRODUCTION Properties of specific particles relativistic heavy ion collider Science Studies The physics of elementary particles and fields THERMODYNAMICS UNIVERSE
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