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Strong interaction - Wikipedia, the free encyclopedia
The strength of interaction is parametrized by the strong coupling constant. ... MISN-0-280: The Strong Interaction (PDF file) by J.R. Christman for Project PHYSNET. ...
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Theory: Strong Interactions (SLAC VVC)
Fundamental strong interactions occur between any two particles that have color ... Gluons are the carrier particle for strong interactions. ...
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Nuclear force - Wikipedia, the free encyclopedia
(Redirected from Strong nuclear interaction) Jump to: navigation, search ... After the verification of the quark model, strong interaction has come to mean QCD. ...
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Fundamental Forces
... weak interaction acts between both quarks and leptons, whereas the strong force ... do not participate in the strong interactions; neutrinos have no charge, ...
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Strong interaction - Conservapedia
The strength of the interaction is parametrized by the strong coupling constant. ... MISN-0-280: The Strong Interaction (PDF file) by J.R. Christman for ...
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strong interaction: Definition from Answers.com
strong interaction n. A fundamental interaction between elementary particles that causes protons and neutrons to bind together in the atomic nucleus
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Feynman Diagrams and the Strong Force
... to visualize the strong interaction involves primitive vertices with ... Particles can decay via the strong interaction, and if such a decay pathway is ...
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Strong interaction - Wikinfo
The strong nuclear force or strong interaction is a fundamental force ... The strong interaction acts between two quarks by exchanging particles called gluons. ...
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Strong Interaction
... of the nuclear forces (the strong interaction) is only about 10-15 meters. ... nucleons together in the nucleon is the strong nuclear force (strong interaction) ...
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The strong interaction or strong force is today understood to represent the interactions between quarks and gluons as detailed by the theory of quantum chromodynamics (QCD). The strong force is the fundamental force mediated by gluons, acting upon quarks, antiparticle, and the gluons themselves.

The strong force only acts directly upon elementary particles. However, a residual of the force is observed between hadrons (the best known example being the force that acts between nucleons in atomic nuclei) as the nuclear force. Here the strong force acts indirectly, transmitted as gluons which form part of the virtual pi and rho mesons which classically transmit the nuclear force (see this topic for more). As has been shown by many failed free quark searches, the elementary particles affected are unobservable directly. This phenomenon is called Colour confinement, a theory which allows only hadrons to be seen.

History Before the 1970s, when protons and neutrons were thought to be fundamental particles, the phrase "strong force" referred to what is today known as the nuclear force or the residual strong force. What were being observed were the "residual" effects of the strong force, which act on hadrons, both baryons and mesons. This force was postulated to overcome the electromagnetism between protons in the atomic nucleus, and for its strength (at short distances) it was dubbed the "strong force". After the discovery of quarks, scientists realized that the force was actually acting upon the quarks and gluons making up the protons, not the protons themselves. For some time after this realization, the older notion was referred to as the residual strong force, and the "new" strong interaction was called colour force.

Details Quantum chromodynamics, a part of the standard model of particle physics, is a typical non-Abelian gauge theory based on a local (gauge) symmetry group called SU(3). All the particles in this theory interact with each other, through the strong force. The strength of the interaction is parametrized by the strong coupling constant. This strength is, as usual, modified by the gauge coupling constant#Charge, colour charge, etc of the particle. This really refers to a Group theory property whose meaning is explained in the article on colour charge and has nothing to do with colour as such. Quarks and gluons are the only fundamental particles which carry non-vanishing colour charge, and hence participate in the strong interactions.

See also

• Weak interaction, electromagnetism and gravity
• Standard model of particle physics and its standard model (basic details).
• Quantum field theory and gauge theory
• Quantum chromodynamics and QCD matter
• Internucleon force and nuclear physics
• Coupling constant
• Binding energy
• Nuclear force

References

• David J. Griffiths, 1987. Introduction to Elementary Particles. John Wiley & Sons. ISBN 0-471-60386-4
• Richard Morris, 2003. The Last Sorcerers: The Path from Alchemy to the Periodic Table. Washington DC: Joseph Henry Press. ISBN 0-309-50593-3

External links

• MISN-0-280: The Strong Interaction (Portable Document Format file) by J.R. Christman for Project PHYSNET.

Strong interaction - Wikipedia, the free encyclopedia
In particle physics, the strong interaction, or strong force, or color force, holds quarks and gluons together to form protons and neutrons. The strong interaction is one of the ...

Strong Interaction
Simple explanation of strong interaction in the framework of the history of the Universe ... Physical Environment > Strong Interaction This site tells the story of the history ...

Strong Interaction
Simple explanation of strong interaction in the framework of the history of the Universe ... www.historyoftheuniverse.com: Web

Strong
To understand what is happening inside the nucleus, we need to understand more about the quarks that make up the protons and neutrons in the nucleus. Quarks have electromagnetic ...

strong interaction - Hutchinson encyclopedia article about strong ...
strong nuclear force. One of the four fundamental forces of nature, the other three being the gravitational force or gravity, the electromagnetic force, and the weak nuclear force.

strong interaction definition of strong interaction in the Free Online ...
strong interactions, actions between elementary particles elementary particles, the most basic physical constituents of the universe. Basic Constituents of Matter

Strong interaction - Definition
The strong nuclear force or strong interaction (also called color force or colour force) is a fundamental force of nature which affects only quarks and antiquarks, and is mediated ...

strong interaction - definition of strong interaction by the Free ...
A fundamental interaction between elementary particles that causes protons and neutrons to bind together in the atomic nucleus. Also called strong force.

Strong interaction - Wikipedia
The strong nuclear force or strong interaction is a fundamental force of nature which affects only quarks, antiquarks, and gluons. This force is responsible for binding quarks ...

Feynman Diagrams and the Strong Force
Feynman Diagrams and the Strong Force. At the most fundamental level, the strong force is an exchange force between quarks mediated by gluons. The use of Feynman diagrams to ...