Primakoff effect

Primakoff effect

Primakoff effect (after Henry Primakoff) is the resonant production of neutral mesons by high-energy photons interacting with an atomic nucleus. It can be viewed as the reverse process of the decay of the meson into two photons.

Primakoff effect has been used for the measurement of the decay width of neutral mesons [ [http://www.slac.stanford.edu/spires/find/hep/www?j=PRLTA,33,1400 The Decay Width of the Neutral π Meson] ] .

Primakoff effect also takes place in stars, and could be a production mechanism of hypothetical particles, such as the axion.

The Primakoff effect is predicted to lead to optical properties of the vacuum state in the presence of a strong magnetic field. [ [http://arxiv.org/abs/hep-ph/0701198v1 "Resonantly enhanced axion-photon regeneration"] P. Sikivie, D.B. Tanner, and Karl van Bibberc]

References

ee also

*Vacuum state



Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Henry Primakoff — (* February 12, 1914 in Odessa, Ukraine; † July 25, 1983 in Philadelphia) was a theoretical physicist who is famous for his discovery of the Primakoff effect.Primakoff contributed to the understanding of weak interactions, double beta decay, spin …   Wikipedia

  • Axion — L’axion est une particule hypothétique, supposée stable, neutre et de très faible masse (1 meV µeV). Elle est une conséquence de la solution de Peccei Quinn (en) (1977) au problème de violation de la symétrie CP en chromodynamique… …   Wikipédia en Français

  • List of effects — This is a list of names for observable phenonema that contain the word effect, amplified by reference(s) to their respective fields of study. #*3D audio effect (audio effects)A*Accelerator effect (economics) *Accordion effect (physics) (waves)… …   Wikipedia

  • Эффект Примакова — Фейнмановская диаграмма, описывающая эффект Примакова. Эффект Примакова (англ. Primakoff effect)  резонансное превращение фотона в статическом элек …   Википедия

  • Axion — Infobox Particle name = Axion status = Hypothetical interaction = Gravity, Electromagnetic theorized = 1977, Peccei and Quinn mass = 10−6 to 1 eV/c2 electric charge = 0 spin = 0The axion is a hypothetical elementary particle postulated by Peccei… …   Wikipedia

  • Magnon — There is a place named Magnon in Gabon. A magnon is a collective excitation of the electrons spin structure in a crystal lattice. In contrast, a phonon is a collective excitation of the crystal lattice atoms or ions. In the equivalent wave… …   Wikipedia

  • Spin wave — Spin waves are propagating disturbances in the ordering of magnetic materials. These low lying collective excitations occur in magnetic lattices with continuous symmetry. From the equivalent quasiparticle point of view, spin waves are known as… …   Wikipedia

  • Effet — Pour les articles homonymes, voir Effet (homonymie). Sur les autres projets Wikimedia : « Effet », sur le Wiktionnaire (dictionnaire universel) Sommaire 1 Généralit …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”