Dictionary

CERN

European research centre for nuclear and particle physics (Centre Européen pour la Récherche Nucleaire – pardon my French), located near Geneva on both sides of the franco-swiss border, founded 1954.

CERN isn’t famous just because of particle accelerators like its proton synchrotron, the Large Electron Positron Collider (LEP) and the Large Hadron Collider (LHC), but also as the birthplace of the World Wide Web.

> CERN website

Definitioner

Positron

Positronen sind die Antiteilchen der Elektronen: elektrisch positiv geladene, leichte Elementarteilchen.

CERN

Europäisches Forschungszentrum für Kern- und Teilchenphysik (Centre Européen pour la Récherche Nucleaire), angesiedelt nahe Genf beidseits der französisch-schweizerischen Grenze, gegründet 1954.

CERN ist nicht nur für seine Teilchenbeschleuniger wie den Large Hadron Collider (LHC) bekannt, sondern auch als Geburtsort des World Wide Web.

Webseiten des CERN

synchrotron

A particle accelerator, in which particles are accelerated with the help of electric fields, while strong magnetic fields keep them on track (the fact that ever-stronger magnetic fields are needed as acceleration proceeds is a consequence of the fact that relativistic mass increases with speed.)

proton

Particle that carries positive electric charge and is comparatively massive; the atomic nuclei consist of protons and neutrons. Protons are not elementary particles, they are compound particles consisting of quarks that are bound together through the strong nuclear interaction . Collectively, protons, neutrons and a number of similar particles are called baryons.

particle physics

The branch of physics that deals with particles that are, to the best of today's knowledge, not made up of more fundamental sub-units, for instance with electrons, quarks or neutrinos. Also included is the study of some species of particles that do have more elementary constitutents, such as protons or neutrons, but not of larger systems such as atomic nuclei (that would be nuclear physics) or, even worse, whole atoms. Questions such as, whether the particles nowadays thought to be elementary really are elementary, or are, for instance, different manifestations of one and the same species of string, fall within the scope of particle physics. The theoretical tools of particle physics are the so-called quantum field theories which allow the description of elementary particles on the basis of both quantum theory and special relativity, while the main experimental tools are particle accelerators in which particles are accelerated and then brought to collision.

CERN

European research centre for nuclear and particle physics (Centre Européen pour la Récherche Nucleaire - pardon my French), located near Geneva on both sides of the franco-swiss border, founded 1954. CERN isn't famous just because of particle accelerators like its proton synchrotron, the Large Electron Positron Collider (LEP) and the Large Hadron Collider (LHC), but also as the birthplace of the World Wide Web. > CERN website

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CERN

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