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  Encyclopedia of Keywords > Positron > Pair Production   Michael Charnine

Keywords and Sections
PAIR PRODUCTION
PAIRS
CHARGE
PHOTON
VIRTUAL
ELECTRIC FIELD
ANSWER
FIELD
DEFINITION
MASS
ELECTRIC CHARGES
GREAT TOOL
NUCLEUS
GAMMA DECAY
PROCESSES
PROCESS
STRONG INTERACTIONS
MATTER
GAMMA-RAYS
ANNIHILATION
ENERGY
QUARKS
GAMMA RAYS
ELECTRON
PHOTONS
EVENT HORIZON
POSITRONS
POSITRON
Review of Short Phrases and Links

    This Review contains major "Pair Production"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Pair production is a physical process which occurs when two high-energy photons collide and produce a particle and an antiparticle .
  2. Pair production is one of the primary methods of forming matter in the early Universe.
  3. Pair production is a process in which a gamma ray of sufficient energy is converted into an electron and a positron.- [7].
  4. Pair production is a great experience that is able helps us to answer many mysteries of universe.
  5. Pair production is a direct conversion of radiant energy to matter. (Web site)

Pair Production

  1. Supernova SN 2006gy is hypothesized to have been a pair production type supernova. (Web site)
  2. There is no mechanism for pair production whereby the pairs will become polarized in a gravitational field. (Web site)
  3. In semiclassical general relativity, pair production is also invoked to explain the Hawking radiation effect.
  4. The electric field is two or three times stronger, so pair production and vacuum polarization are N times stronger. (Web site)
  5. Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at - s ~ 183 GeV at LEP. Phys. (Web site)

Pairs

  1. In semiclassical general relativity, pair production is also invoked to explain the Hawking radiation effect. (Web site)
  2. Definition of pair production in the Online Dictionary.
  3. There is no mechanism for pair production whereby the pairs will become polarized in a gravitational field. (Web site)
  4. For more information on pair production, visit Britannica.com. (Web site)
  5. This opens the way for virtual pair production or annihilation in which a one particle quantum state may fluctuate into a two particle state and back.

Charge

  1. And in pair production negative color-charges combine with each other and make negative charge.
  2. Renormalization requires taking effective charges which correspond to the polarization and pair production cutoffs mentioned.
  3. We know before of pair production there is a photon that has no charge.
  4. Quantum electrodynamics allows virtual charge pair production from the ZPE as long as charge is conserved. (Web site)

Photon

  1. The reverse process, pair production, is the dominant mechanism by which high-energy photons such as gamma rays lose energy while passing through matter. (Web site)
  2. Positrons may be generated by positron emission radioactive decay (a weak interaction), or by pair production from a sufficiently energetic photon. (Web site)
  3. Photon pair production with soft gluon resummation in hadronic interactions. (Web site)
  4. For pair production to occur, the electromagnetic energy, in a discrete quantity called a photon, must be at least equivalent to the mass of two electrons.
  5. And if the photon has enough energy and is in the field of a nucleus, pair production is posssible. (Web site)

Virtual

  1. This opens the way for virtual pair production or annihilation in which a one particle quantum state may fluctuate into a two particle state and back. (Web site)
  2. Pair production tells you it’s being converted into virtual particles. (Web site)

Electric Field

  1. Hawking’s radiation theory requires this, because his explanation is that pair production must occur near the event horizon of the black hole.
  2. Another example is pair production in very strong electric fields, sometimes called vacuum decay.
  3. The electric field is two or three times stronger, so pair production and vacuum polarization are N times stronger. (Web site)

Answer

  1. The answer is that virtual pair production is a quantum mechanical event.

Field

  1. The key thing is in a quantum field theory, any field below the IR cutoff is exchange radiation with no virtual fermions appearing (no pair production). (Web site)

Definition

  1. Definition of pair production in the Online Dictionary.

Mass

  1. Your claims implied that the virtual pair production inevitably lead to a non-zero rest mass for the photon.

Electric Charges

  1. Pair production can't occur in weaker electric fields, because if they did, there would be no electric charges in the universe. (Web site)

Great Tool

  1. But attention to pair production is a great tool for this.

Nucleus

  1. Under normal circumstances there are no (real) electrons in a nucleus, but, in fact there are plenty, plenty virtual ones due to virtual pair production.
  2. We can get some qualitative understanding of the origin of Zitterbewegung from the idea of virtual pair production in the field of the nucleus.

Gamma Decay

  1. See gamma decay; pair production.

Processes

  1. Gamma decay also includes two other processes, internal conversion and internal pair production. (Web site)

Process

  1. Pair production The pair production process is one of the most interesting demonstrations for the presence of space matter in atoms.

Strong Interactions

  1. Pair production via strong interactions.

Matter

  1. It is sometimes suggested that pair production can be used to explain the origin of matter in the universe.
  2. In passing through matter, gamma radiation ionizes via three main processes: the photoelectric effect, Compton scattering, and pair production. (Web site)

Gamma-Rays

  1. There are three methods of attenuating (reducing the energy level of) gamma-rays: photoelectric effect, compton scattering, and pair production.

Annihilation

  1. This opens the way for virtual pair production or annihilation in which a one particle quantum state may fluctuate into a two particle state and back. (Web site)

Energy

  1. Radiation Length, High-energy electrons predominantly lose energy in matter by bremsstrahlung, and high-energy photons by e + e - pair production. (Web site)
  2. Pair production and nuclear fusion are processes through which measurable amounts of mass and energy are converted into each other. (Web site)
  3. Pair production and annihilation is an empirical example of equivalence relation mass and energy.

Quarks

  1. The pair production of Quarks is limited by the energy theshold; the more energy available the higher the mass of Quark that can be produced.
  2. The b quark decays to muons offer another way to measure not only the pair production cross section but the “mixing” of b quarks. (Web site)

Gamma Rays

  1. The energy can appear directly as gamma rays or can convert back to particles and antiparticles (see pair production). (Web site)

Electron

  1. Thus for electron pair production the energy must exceed 2x0.511 MeV (about 10 Billion °K).
  2. Also, when two 511 KeV photons meet in the near surface of a heavy nucleus, pair production of electron and positron can occur. (Web site)
  3. In internal pair production, excess energy is converted into an electron and a positron, which are emitted together. (Web site)

Photons

  1. Before black holes were discovered it was know that the collision of two photons can cause pair production.

Event Horizon

  1. Thus, the black hole can lose mass by a quantum mechanical process of pair production outside of the event horizon.
  2. Hawking's radiation theory requires this, because his explanation is that pair production must occur near the event horizon of the black hole.

Positrons

  1. Positrons may be generated by positron emission radioactive decay (a weak interaction), or by pair production from a sufficiently energetic photon. (Web site)
  2. Positrons may be generated by positron emission radioactive decay (through weak interactions), or by pair production from a sufficiently energetic photon.

Positron

  1. Pair Production of electron and positron: A demonstration for the presence of space matter in atoms.
  2. Conversely, photons with sufficient energy (E 2x (mass of electron) x c 2) can produce an electron and a positron -- this is called pair production.
  3. Conversely, a high-energy photon can be transformed into an electron and a positron by a process called pair production. (Web site)

Categories

  1. Positron
  2. Theoretical Physics > Relativity > General Relativity > Event Horizon
  3. Manufacturing > Measurement > Force > Photon
  4. Encyclopedia of Finance. > Technology > Energy > Electron
  5. Glossaries > Glossary of Particle Physics /
  6. Books about "Pair Production" in Amazon.com

Book: Keywen Category Structure


  Short phrases about "Pair Production"
  Originally created: March 19, 2008.
  Links checked: March 01, 2013.
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