weak interaction
71Weakless Universe — The Weakless Universe is a hypothetical universe that contains no weak interactions, but is otherwise very similar to our own universe. In particular, the Weakless Universe is constructed to have nuclear physics and chemistry identical to… …
72QCD vacuum — The QCD vacuum is the vacuum state of quantum chromodynamics (QCD). It is an example of a non perturbative vacuum state, characterized by many non vanishing condensates such as the gluon condensate or the quark condensate. These condensates… …
73Chirality (physics) — A chiral phenomenon is one that is not identical to its mirror image (see Chirality). The spin of a particle may be used to define a handedness (aka chirality) for that particle. A symmetry transformation between the two is called parity.… …
74Inventions in the modern Islamic world — [ Abdus Salam, the 1979 Nobel Prize in Physics recipient, include the electroweak interaction, electroweak symmetry breaking, magnetic photon, neutral current, preon, W and Z bosons, supergeometry, supermanifold, superspace and superfield.] This… …
75Grand Unified Theory — For the album, see Grand Unification (album). Beyond the Standard Model …
76Elementary particle — In particle physics, an elementary particle or fundamental particle is a not known to have substructure; that is, it is not known to be made up of smaller particles. If an elementary particle truly has no substructure, then it is one of the basic …
77CP violation — In particle physics, CP violation is a violation of the postulated CP symmetry: the combination of C symmetry (charge conjugation symmetry) and P symmetry (parity symmetry). CP symmetry states that the laws of physics should be the same if a… …
78Top quark — Infobox Particle bgcolour = name = Top Quark caption = num types = composition = Elementary particle family = Fermion group = Quark generation = Third interaction = particle = antiparticle = theorized = discovered = CDF and D0 collaborations,… …
79Isospin — In physics, and specifically, particle physics, isospin ( isotopic spin , isobaric spin ) is a quantum number related to the strong interaction. This term was derived from isotopic spin , but the term isotopic spin is confusing as two isotopes of …
80Neutrino decoupling — In Big Bang cosmology, neutrino decoupling refers to the epoch at which neutrinos ceased interacting with baryonic matter, and thereby ceased influencing the dynamics of the universe at early times.[1] Prior to decoupling, neutrinos were in… …
