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  2. Pseudoscalar meson - Wikipedia

    en.wikipedia.org/wiki/Pseudoscalar_meson

    Despite the pseudoscalar mesons' masses being known to high precision, and being the most well studied and understood mesons, the decay properties of the pseudoscalar mesons, particularly of eta (η) and eta-prime (η ′), are somewhat contradictory to their mass hierarchy: While the η ′ meson is much more massive than the η meson, the η meson is thought to contain a larger component of ...

  3. List of accelerators in particle physics - Wikipedia

    en.wikipedia.org/wiki/List_of_accelerators_in...

    Particles collided Beam energy Experiments INSPIRE Intersecting Storage Rings: CERN 1971–1984 Circular rings (948 m around) Proton/ Proton 31.5 GeV INSPIRE: Super Proton Synchrotron/Sp p S CERN 1981–1984 Circular ring (6.9 km around) Proton/ Antiproton 270–315 GeV UA1, UA2: INSPIRE: Tevatron Run I Fermilab: 1992–1995 Circular ring (6.3 ...

  4. Category:Particle accelerators - Wikipedia

    en.wikipedia.org/wiki/Category:Particle_accelerators

    In physics, particle accelerators are devices for generating streams of sub-atomic particles at very high energies. The field concerned with designing and building particle accelerators is called accelerator physics .

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  6. Einstein's thought experiments - Wikipedia

    en.wikipedia.org/wiki/Einstein's_thought_experiments

    In the EPR thought experiment, however, Bohr had to admit that "there is no question of a mechanical disturbance of the system under investigation." On the other hand, he noted that the two particles were one system described by one quantum function. Furthermore, the EPR paper did nothing to dispel the uncertainty principle.

  7. Particle accelerator - Wikipedia

    en.wikipedia.org/wiki/Particle_accelerator

    The Tevatron (background circle), a synchrotron collider type particle accelerator at Fermi National Accelerator Laboratory (Fermilab), Batavia, Illinois, USA. Shut down in 2011, until 2007 it was the most powerful particle accelerator in the world, accelerating protons to an energy of over 1 TeV (tera electron volts).

  8. Accelerator physics - Wikipedia

    en.wikipedia.org/wiki/Accelerator_physics

    Accelerator physics is a branch of applied physics, concerned with designing, building and operating particle accelerators.As such, it can be described as the study of motion, manipulation and observation of relativistic charged particle beams and their interaction with accelerator structures by electromagnetic fields.

  9. Particle beam - Wikipedia

    en.wikipedia.org/wiki/Particle_beam

    A particle beam is a stream of charged or neutral particles.In particle accelerators, these particles can move with a velocity close to the speed of light. [1] There is a difference between the creation and control of charged particle beams and neutral particle beams, as only the first type can be manipulated to a sufficient extent by devices based on electromagnetism.