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"Ionization and Positronium Formation in Noble Gases" Phys. Rev. A 71 (2005), 022701. J. P. Marler, J.P. Sullivan and C.M. Surko (PDF)
"Ionization and Positronium Formation in Noble Gases" Phys. Rev. A 71 (2005), 022701. J. P. Marler, J.P. Sullivan and C.M. Surko (PDF)

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diplomarbeit-thomas - Ultracold Quantum Gases Group

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... The results of our previous theoretical and experimental investigations are assumed as a basis of formation of the atomic nuclei of the chemical elements [1], [2]. The analysis of the laws of formation of the spectra shows that the electrons in the atoms do not have an orbital movement. The electron ...
High Brilliance Beam Diagnostic
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CHAPTER 14: Elementary Particles

... act through the strong force. Two classes of hadrons: mesons and baryons. Mesons are particles with integral spin having masses greater than that of the muon (106 MeV/c2). (Mesons are made up of pairs of quarks—a quark and an anti-quark.) They’re unstable and rare. Baryons have masses at least as la ...
exploring cosmic strings: observable effects and cosmological
exploring cosmic strings: observable effects and cosmological

... and/or superstring theory. In this regard, I present new mechanisms to produce particles from cosmic (super)strings, and discuss their cosmological and observational effects in this dissertation. The first chapter is devoted to a review of the standard cosmology, cosmic (super)strings and cosmic ray ...
Some effects on polymers of low-energy implanted positrons
Some effects on polymers of low-energy implanted positrons

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... anion skeleton is penetrated by channels, giving a honeycomb like structure. These channels are large enough to allow them to exchange certain ions. They can also absorb or lose water, and other small molecules without the structure being broken. Zeolities are often used as ion- ...
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ASPECTS OF THE MCMASTER INTENSE POSITRON BEAM

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... The point-like hadron pair expands and cools down: the current quarks and antiquarks absorb gluon and transform into constituent quarks ...
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Martin - Nuclear and Particle Physics
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William Wilson and the Absorption of Beta Rays

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Antimatter

In particle physics, antimatter is material composed of antiparticles, which have the same mass as particles of ordinary matter but opposite charges, as well as other particle properties such as lepton and baryon numbers and quantum spin. Collisions between particles and antiparticles lead to the annihilation of both, giving rise to variable proportions of intense photons (gamma rays), neutrinos, and less massive particle–antiparticle pairs. The total consequence of annihilation is a release of energy available for work, proportional to the total matter and antimatter mass, in accord with the mass–energy equivalence equation, E = mc2.Antiparticles bind with each other to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements. Studies of cosmic rays have identified both positrons and antiprotons, presumably produced by collisions between particles of ordinary matter. Satellite-based searches of cosmic rays for antideuteron and antihelium particles have yielded nothing. There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to a more even mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between particles and antiparticles developed is called baryogenesis.Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Antimatter in the form of individual anti-particles, however, is commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium (both helium-3 and helium-4) have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.
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