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Spin (physics) Spin is an intrinsic form of angular momentum carried by elementary particles, and thus by composite particles such as hadrons, atomic nuclei, and atoms. [1] [2] : 183 –184 Spin is quantized, and accurate models for the interaction with spin require relativistic quantum mechanics or quantum field theory .
t. e. In quantum physics, the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is a relativistic interaction of a particle's spin with its motion inside a potential. A key example of this phenomenon is the spin–orbit interaction leading to shifts in an electron 's atomic energy levels, due to electromagnetic ...
The component of the spin along a specified axis is given by the spin magnetic quantum number, conventionally written m s. [1] [2] The value of m s is the component of spin angular momentum, in units of the reduced Planck constant ħ , parallel to a given direction (conventionally labelled the z –axis).
Spin. Scoring abbreviation. Sp. Spins are an element in figure skating in which the skater rotates, centered on a single point on the ice, while holding one or more body positions. They are performed by all disciplines of the sport, single skating, pair skating, and ice dance, and are a required element in most figure skating competitions.
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Dirac spinor. In quantum field theory, the Dirac spinor is the spinor that describes all known fundamental particles that are fermions, with the possible exception of neutrinos. It appears in the plane-wave solution to the Dirac equation, and is a certain combination of two Weyl spinors, specifically, a bispinor that transforms "spinorially ...
0-679-75574-8. The Spin Alternative Record Guide is a music reference book compiled by the American music magazine Spin and published in 1995 by Vintage Books. It was edited by the rock critic Eric Weisbard and Craig Marks, who was the magazine's editor-in-chief at the time. The book has essays and reviews from a number of prominent critics on ...
The spin number describes how many symmetrical facets a particle has in one full rotation; a spin of 1 / 2 means that the particle must be rotated by two full turns (through 720°) before it has the same configuration as when it started. Particles having net spin 1 / 2 include the proton, neutron, electron, neutrino, and quarks.