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  2. Particle physics - Wikipedia

    en.wikipedia.org/wiki/Particle_physics

    The reconciliation of gravity to the current particle physics theory is not solved; many theories have addressed this problem, such as loop quantum gravity, string theory and supersymmetry theory. Practical particle physics is the study of these particles in radioactive processes and in particle accelerators such as the Large Hadron Collider.

  3. Standard Model - Wikipedia

    en.wikipedia.org/wiki/Standard_Model

    The Standard Model of particle physics is the theory describing three of the four known fundamental forces (electromagnetic, weak and strong interactions – excluding gravity) in the universe and classifying all known elementary particles.

  4. Feynman diagram - Wikipedia

    en.wikipedia.org/wiki/Feynman_diagram

    The definition of "particle" in relativistic field theory is not self-evident, because if you try to determine the position so that the uncertainty is less than the compton wavelength, the uncertainty in energy is large enough to produce more particles and antiparticles of the same type from the vacuum. This means that the notion of a single ...

  5. Grand Unified Theory - Wikipedia

    en.wikipedia.org/wiki/Grand_Unified_Theory

    A Grand Unified Theory (GUT) is any model in particle physics that merges the electromagnetic, weak, and strong forces (the three gauge interactions of the Standard Model) into a single force at high energies. Although this unified force has not been directly observed, many GUT models theorize its existence.

  6. Particle physics and representation theory - Wikipedia

    en.wikipedia.org/wiki/Particle_physics_and...

    There is a natural connection between particle physics and representation theory, as first noted in the 1930s by Eugene Wigner. [1] It links the properties of elementary particles to the structure of Lie groups and Lie algebras.

  7. Supersymmetry - Wikipedia

    en.wikipedia.org/wiki/Supersymmetry

    In particle physics, a supersymmetric extension of the Standard Model is a possible candidate for undiscovered particle physics, and seen by some physicists as an elegant solution to many current problems in particle physics if confirmed correct, which could resolve various areas where current theories are believed to be incomplete and where ...

  8. Mathematical formulation of the Standard Model - Wikipedia

    en.wikipedia.org/wiki/Mathematical_formulation...

    This article describes the mathematics of the Standard Model of particle physics, a gauge quantum field theory containing the internal symmetries of the unitary product group SU(3) × SU(2) × U(1). The theory is commonly viewed as describing the fundamental set of particles – the leptons , quarks , gauge bosons and the Higgs boson .

  9. Weak interaction - Wikipedia

    en.wikipedia.org/wiki/Weak_interaction

    The Standard Model of particle physics describes the electromagnetic interaction and the weak interaction as two different aspects of a single electroweak interaction. This theory was developed around 1968 by Sheldon Glashow, Abdus Salam, and Steven Weinberg, and they were awarded the 1979 Nobel Prize in Physics for their work. [22]

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