Weak charge (original) (raw)
In nuclear physics and atomic physics, weak charge refers to the Standard Model weak interaction coupling of a particle to the Z boson. For example, for any given nuclear isotope, the total weak charge is approximately −0.99 per neutron, and +0.07 per proton. It also shows an effect of parity violation during electron scattering. This same term is sometimes also used to refer to other, distinct quantites, such as weak isospin, weak hypercharge, or the vector coupling of a fermion to the Z boson (i.e. the coupling strength of weak neutral currents).
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| dbo:abstract | Der Begriff der schwachen Ladung wird in der Literatur uneinheitlich verwendet und bezeichnet je nach Autor * die schwache Hyperladung * den schwachen Isospin oder dessen dritte Komponente * eine der beiden Kopplungskonstanten der elektroschwachen Wechselwirkung, meist * das Produkt aus dritter Komponente des schwachen Isospins und der Kopplungskonstante Die schwache Wechselwirkung geht im Standardmodell aus der elektroschwachen Symmetriebrechung hervor. Nach dem Fabri-Picasso-Theorem existieren zu gebrochenen Symmetrien jedoch keine Ladungen.Der schwache Isospin ist die Ladung der schwachen Wechselwirkung in der ungebrochenen Phase. (de) In nuclear physics and atomic physics, weak charge refers to the Standard Model weak interaction coupling of a particle to the Z boson. For example, for any given nuclear isotope, the total weak charge is approximately −0.99 per neutron, and +0.07 per proton. It also shows an effect of parity violation during electron scattering. This same term is sometimes also used to refer to other, distinct quantites, such as weak isospin, weak hypercharge, or the vector coupling of a fermion to the Z boson (i.e. the coupling strength of weak neutral currents). (en) |
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| rdfs:comment | In nuclear physics and atomic physics, weak charge refers to the Standard Model weak interaction coupling of a particle to the Z boson. For example, for any given nuclear isotope, the total weak charge is approximately −0.99 per neutron, and +0.07 per proton. It also shows an effect of parity violation during electron scattering. This same term is sometimes also used to refer to other, distinct quantites, such as weak isospin, weak hypercharge, or the vector coupling of a fermion to the Z boson (i.e. the coupling strength of weak neutral currents). (en) Der Begriff der schwachen Ladung wird in der Literatur uneinheitlich verwendet und bezeichnet je nach Autor * die schwache Hyperladung * den schwachen Isospin oder dessen dritte Komponente * eine der beiden Kopplungskonstanten der elektroschwachen Wechselwirkung, meist * das Produkt aus dritter Komponente des schwachen Isospins und der Kopplungskonstante (de) |
| rdfs:label | Schwache Ladung (de) Weak charge (en) |
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