Definition, Betydelse & Anagram | Engelska ordet PIONS

Definition av PIONS

1. böjningsform av pion

Exempel på hur man kan använda PIONS i en mening

• Charged pions most often decay into muons and muon neutrinos, while neutral pions generally decay into gamma rays.
• For example, electrons may be replaced by other negatively charged particles such as muons (muonic atoms) or pions (pionic atoms).
• These include the Higgs field of the Standard Model, as well as the charged pions mediating the strong nuclear interaction.
• Leon Lederman, Steinberger and Schwartz built large spark chambers at Nevis Labs and exposed them in 1961 to neutrinos produced in association with muons in the decays of charged pions and kaons.
• A Yukawa interaction is thus used to describe the nuclear force between nucleons mediated by pions (which are pseudoscalar mesons).
• In practice, for the multi-particle final states produced in a typical collider experiment, separation of kaons from other final state hadrons, mainly pions, is the most important purpose of the RICH.
• If the primary particle is a hadron, mostly light mesons like pions and kaons are produced in the first interactions, which then fuel a hadronic shower component that produces shower particles mostly through pion decay.
• Gardner (1913-1950) at UC Berkeley, Lattes was able to detect the artificial production of pions in the lab's cyclotron, by bombarding carbon atoms with alpha particles.
• Then around T = 150 MeV there is a crossover to the quark gluon plasma: thermal fluctuations break up the pions, and we find a gas of quarks, antiquarks, and gluons, as well as lighter particles such as photons, electrons, positrons, etc.
• This radiation interacts with atoms in the atmosphere to create an air shower of secondary ionising radiation, including X-rays, muons, protons, alpha particles, pions, and electrons.
• The debris contains particles such as pions and kaons, which are made of a quark and an antiquark; protons and neutrons, made of three quarks; and numerous antiprotons and antineutrons, which may combine to form the nuclei of antiatoms as heavy as helium.
• Following World War II, positive and negative muons and pions were observed in cosmic-ray interactions seen in cloud chambers and stacks of nuclear photographic emulsions.
• The Belle detector was a hermetic multilayer particle detector with large solid angle coverage, vertex location with precision on the order of tens of micrometres (provided by a silicon vertex detector), good distinction between pions and kaons in the momenta range from 100 MeV/c to few GeV/c (provided by a Cherenkov detector), and a few-percent precision electromagnetic calorimeter (made of CsI(Tl) scintillating crystals).
• The detector is based on a solenoidal hermetic detector optimized for tracking of charged particles (electron, pions, kaons, and protons) and detection of neutral particles (primarily photons).
• A prime example would be Abdus Salam; Salam was the first man to be accredited with all the collaboration with CERN which when he convinced them to give Pakistan stacks of nuclear emulsions exposed for further study of pions, kaons and antiprotons in the 1960s.
• Inelastic electron scattering in coincidence with mesons (pions, etas, kaons) provides information about the excitation spectrum of protons and neutrons.
• Five types of long-lived, charged particles are produced at CLEO: electrons, pions, muons, kaons and protons.
• Various cross-section measurements of electron and muon neutrinos and antineutrinos, including inclusive charged current (CC) interactions, CC interactions without pions and with single pion in the final state, coherent pion production, neutral current interactions, etc.
• Unfortunately, the synchrotron at Harwell was not powerful enough to create pions as he hoped, so he investigated "stars" (multi-particle disintegrations) in nuclear emulsions.
• He performed experiments in the systematizing and the discovery of new particles since 1958, using beams of muons, pions, kaons, protons and antiprotons, and neutrinos.

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