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  2. Proton - Wikipedia

    en.wikipedia.org/wiki/Proton

    A proton is a stable subatomic particle, symbol p, H +, or 1 H + with a positive electric charge of +1 e (elementary charge).Its mass is slightly less than the mass of a neutron and approximately 1836 times the mass of an electron (the proton-to-electron mass ratio).

  3. Irvine–Michigan–Brookhaven (detector) - Wikipedia

    en.wikipedia.org/wiki/Irvine–Michigan...

    IMB detected fast-moving particles such as those produced by proton decay or neutrino interactions by picking up the Cherenkov radiation generated when such a particle moves faster than light's speed in water. Since directional information was available from the phototubes, IMB was able to estimate the initial direction of neutrinos.

  4. Proton radius puzzle - Wikipedia

    en.wikipedia.org/wiki/Proton_radius_puzzle

    Similar to Rutherford's scattering experiments that established the existence of the nucleus, modern electron–proton scattering experiments send beams of high energy electrons into 20cm long tube of liquid hydrogen. [10] The resulting angular distribution of the electron and proton are analyzed to produce a value for the proton charge radius.

  5. Fixed-target experiment - Wikipedia

    en.wikipedia.org/wiki/Fixed-target_experiment

    A fixed-target experiment in particle physics is an experiment in which a beam of accelerated particles is collided with a stationary target. The moving beam (also known as a projectile) consists of charged particles such as electrons or protons and is accelerated to relativistic speed .

  6. Strong interaction - Wikipedia

    en.wikipedia.org/wiki/Strong_interaction

    An animation of the strong interaction between a proton and a neutron, mediated by pions. The colored small double circles inside are gluons . In nuclear physics and particle physics , the strong interaction , also called the strong force or strong nuclear force , is a fundamental interaction that confines quarks into protons , neutrons , and ...

  7. AWAKE - Wikipedia

    en.wikipedia.org/wiki/Advanced_Proton_Driven...

    The AWAKE (Advanced WAKEfield Experiment) facility at CERN is a proof-of-principle experiment, which investigates wakefield plasma acceleration using a proton bunch as a driver, a world-wide first. It aims to accelerate a low-energy witness bunch of electrons from 15 to 20 M eV to several GeV over a short distance (10 m) by creating a high ...

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