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Axion

Index Axion

The axion is a hypothetical elementary particle postulated by the Peccei–Quinn theory in 1977 to resolve the strong CP problem in quantum chromodynamics (QCD). [1]

88 relations: Arkady Vainshtein, Axino, Axion Dark Matter Experiment, Big Bang, Bose–Einstein condensate, Bremsstrahlung, C-symmetry, Caustic (mathematics), CERN Axion Solar Telescope, Chiral symmetry breaking, Cold dark matter, Cosmology, Cross section (physics), Cryogenic Dark Matter Search, Dark matter, Dark matter halo, Dilaton, Dynamical friction, EDELWEISS, Electric charge, Electromagnetism, Electron rest mass, Electronvolt, Elementary particle, Emilio Zavattini, Erice, European Space Agency, Fast radio burst, Fermion, Frank Wilczek, Gerard 't Hooft, Goldstone boson, Gravity, Helen Quinn, Helioscope, Inflation (cosmology), Instanton, Josephson effect, Journal of High Energy Physics, Journal of Physics: Conference Series, Kim Jihn-eui, Klein–Gordon equation, Lightest Supersymmetric Particle, Luciano Maiani, Magnetar, Magnetic monopole, Magnetic resonance imaging, Mass, Massachusetts Institute of Technology, Massive compact halo object, ..., Maxwell's equations, Microwave, Mikhail Shifman, Misalignment mechanism, Nature (journal), Neutron electric dipole moment, Parity (physics), Peccei–Quinn theory, Photon, Physical cosmology, Physical Review, Polarization (waves), Primakoff effect, Primordial black hole, PVLAS, Quantum chromodynamics, Quark, Roberto Peccei, Saxion, Speed of light, Standard Model, Steven Weinberg, Strong CP problem, Strong interaction, Supercomputer, Supermultiplet, Superpartner, Supersymmetry, Topological insulator, Universe, University of Leicester, University of Washington, Weak interaction, Weakly interacting massive particles, Willy Fischler, XENON, XMASS, XMM-Newton. Expand index (38 more) »

Arkady Vainshtein

Arkady Vainshtein (Russian: Аркáдий Иóсифович Вайнштéйн; born February 24, 1942) is a Russian and American theoretical physicist who was awarded Pomeranchuk Prize (2005) and Sakurai Prize (1999) for theoretical physics.

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Axino

The axino is a hypothetical elementary particle predicted by some theories of particle physics.

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Axion Dark Matter Experiment

The Axion Dark Matter Experiment (ADMX, also written as Axion Dark Matter eXperiment in the project's documentation) uses a resonant microwave cavity within a large superconducting magnet to search for cold dark matter axions in the local galactic dark matter halo.

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Big Bang

The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution.

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Bose–Einstein condensate

A Bose–Einstein condensate (BEC) is a state of matter of a dilute gas of bosons cooled to temperatures very close to absolute zero.

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Bremsstrahlung

Bremsstrahlung, from bremsen "to brake" and Strahlung "radiation"; i.e., "braking radiation" or "deceleration radiation", is electromagnetic radiation produced by the deceleration of a charged particle when deflected by another charged particle, typically an electron by an atomic nucleus.

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C-symmetry

Charge conjugation is a transformation that switches all particles with their corresponding antiparticles, and thus changes the sign of all charges: not only electric charge but also the charges relevant to other forces.

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Caustic (mathematics)

In differential geometry and geometric optics, a caustic is the envelope of rays either reflected or refracted by a manifold.

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CERN Axion Solar Telescope

The CERN Axion Solar Telescope (CAST) is an experiment in astroparticle physics to search for axions originating from the Sun.

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Chiral symmetry breaking

In particle physics, chiral symmetry breaking is the spontaneous symmetry breaking of a chiral symmetry – usually by a gauge theory such as quantum chromodynamics, the quantum field theory of the strong interaction.

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Cold dark matter

In cosmology and physics, cold dark matter (CDM) is a hypothetical form of dark matter whose particles moved slowly compared to the speed of light (the cold in CDM) since the universe was approximately one year old (a time when the cosmic particle horizon contained the mass of one typical galaxy); and interact very weakly with ordinary matter and electromagnetic radiation (the dark in CDM).

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Cosmology

Cosmology (from the Greek κόσμος, kosmos "world" and -λογία, -logia "study of") is the study of the origin, evolution, and eventual fate of the universe.

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Cross section (physics)

When two particles interact, their mutual cross section is the area transverse to their relative motion within which they must meet in order to scatter from each other.

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Cryogenic Dark Matter Search

The Cryogenic Dark Matter Search (CDMS) is a series of experiments designed to directly detect particle dark matter in the form of WIMPs.

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Dark matter

Dark matter is a theorized form of matter that is thought to account for approximately 80% of the matter in the universe, and about a quarter of its total energy density.

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Dark matter halo

A dark matter halo is a hypothetical component of a galaxy that envelops the galactic disc and extends well beyond the edge of the visible galaxy.

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Dilaton

In particle physics, the hypothetical dilaton particle, and scalar field, appears in theories with extra dimensions when the volume of the compactified dimensions varies.

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Dynamical friction

In astrophysics, dynamical friction or Chandrasekhar friction, sometimes called gravitational drag, is loss of momentum and kinetic energy of moving bodies through gravitational interactions with surrounding matter in space.

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EDELWEISS

EDELWEISS (Expérience pour DEtecter Les WIMPs En Site Souterrain) is a dark matter search experiment located at the Modane Underground Laboratory in France.

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Electric charge

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.

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Electromagnetism

Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.

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Electron rest mass

The electron rest mass (symbol) is the mass of a stationary electron.

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Electronvolt

In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).

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Elementary particle

In particle physics, an elementary particle or fundamental particle is a particle with no substructure, thus not composed of other particles.

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Emilio Zavattini

Emilio Zavattini (March 14, 1927 – January 9, 2007) was an Italian physicist.

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Erice

Erice (Èrici) is a historic town and comune in the province of Trapani in Sicily, Italy.

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European Space Agency

The European Space Agency (ESA; Agence spatiale européenne, ASE; Europäische Weltraumorganisation) is an intergovernmental organisation of 22 member states dedicated to the exploration of space.

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Fast radio burst

In radio astronomy, a fast radio burst (FRB) is a high-energy astrophysical phenomenon of unknown origin manifested as a transient radio pulse lasting a few milliseconds on average.

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Fermion

In particle physics, a fermion is a particle that follows Fermi–Dirac statistics.

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Frank Wilczek

Frank Anthony Wilczek (born May 15, 1951) is an American theoretical physicist, mathematician and a Nobel laureate.

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Gerard 't Hooft

Gerardus (Gerard) 't Hooft (born July 5, 1946) is a Dutch theoretical physicist and professor at Utrecht University, the Netherlands.

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Goldstone boson

In particle and condensed matter physics, Goldstone bosons or Nambu–Goldstone bosons (NGBs) are bosons that appear necessarily in models exhibiting spontaneous breakdown of continuous symmetries.

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Gravity

Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.

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Helen Quinn

Helen Rhoda Arnold Quinn (born 19 May 1943 in Melbourne) is an Australian-born particle physicist and educator who has made major contributions to both fields.

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Helioscope

A helioscope is an instrument used in observing the sun and sunspots.

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Inflation (cosmology)

In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the early universe.

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Instanton

An instanton (or pseudoparticle) is a notion appearing in theoretical and mathematical physics.

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Josephson effect

The Josephson effect is the phenomenon of supercurrent—i.e. a current that flows indefinitely long without any voltage applied—across a device known as a Josephson junction (JJ), which consists of two superconductors coupled by a weak link.

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Journal of High Energy Physics

The Journal of High Energy Physics is a peer-reviewed, open access scientific journal covering the field of high energy physics.

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Journal of Physics: Conference Series

Journal of Physics: Conference Series (JPCS) is a peer-reviewed, open-access publication from IOP Publishing providing readers with the latest developments in physics presented at international conferences.

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Kim Jihn-eui

Kim Jihn-eui (born July 30, 1946) is a South Korean theoretical physicist.

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Klein–Gordon equation

The Klein–Gordon equation (Klein–Fock–Gordon equation or sometimes Klein–Gordon–Fock equation) is a relativistic wave equation, related to the Schrödinger equation.

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Lightest Supersymmetric Particle

In particle physics, the lightest supersymmetric particle (LSP) is the generic name given to the lightest of the additional hypothetical particles found in supersymmetric models.

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Luciano Maiani

Luciano Maiani (born 16 July 1941 in Rome) is a San Marino citizen physicist best known for his prediction of the charm quark with Sheldon Lee Glashow and John Iliopoulos (the "GIM mechanism").

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Magnetar

A magnetar is a type of neutron star with an extremely powerful inferred magnetic field (\sim 10^ - 10^ G).

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Magnetic monopole

A magnetic monopole is a hypothetical elementary particle in particle physics that is an isolated magnet with only one magnetic pole (a north pole without a south pole or vice versa).

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Magnetic resonance imaging

Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body in both health and disease.

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Mass

Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.

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Massachusetts Institute of Technology

The Massachusetts Institute of Technology (MIT) is a private research university located in Cambridge, Massachusetts, United States.

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Massive compact halo object

A massive astrophysical compact halo object (MACHO) is any kind of astronomical body that might explain the apparent presence of dark matter in galaxy halos.

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Maxwell's equations

Maxwell's equations are a set of partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, and electric circuits.

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Microwave

Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between and.

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Mikhail Shifman

Mikhail "Misha" Arkadyevich Shifman (Михаи́л Арка́дьевич Ши́фман; born 4 April 1949) is a theoretical physicist (high energy physics), formerly at Institute for Theoretical and Experimental Physics, Moscow, Ida Cohen Fine Professor of Theoretical Physics, William I. Fine Theoretical Physics Institute, University of Minnesota.

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Misalignment mechanism

The misalignment mechanism is a hypothesized effect in the Peccei–Quinn theory proposed solution to the strong-CP problem in quantum mechanics.

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Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

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Neutron electric dipole moment

The neutron electric dipole moment (nEDM) is a measure for the distribution of positive and negative charge inside the neutron.

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Parity (physics)

In quantum mechanics, a parity transformation (also called parity inversion) is the flip in the sign of one spatial coordinate.

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Peccei–Quinn theory

In particle physics, the Peccei–Quinn theory is a well-known proposal for the resolution of the strong CP problem.

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Photon

The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).

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Physical cosmology

Physical cosmology is the study of the largest-scale structures and dynamics of the Universe and is concerned with fundamental questions about its origin, structure, evolution, and ultimate fate.

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Physical Review

Physical Review is an American peer-reviewed scientific journal established in 1893 by Edward Nichols.

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Polarization (waves)

Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.

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Primakoff effect

The Primakoff effect, named after Henry Primakoff, is the resonant production of neutral pseudoscalar mesons by high-energy photons interacting with an atomic nucleus.

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Primordial black hole

Primordial black holes are a hypothetical type of black hole that formed soon after the Big Bang.

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PVLAS

PVLAS (Polarizzazione del Vuoto con LASer, "polarization of the vacuum with laser") aims to carry out a test of quantum electrodynamics and possibly detect dark matter at the Department of Physics and National Institute of Nuclear Physics in Ferrara, Italy.

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Quantum chromodynamics

In theoretical physics, quantum chromodynamics (QCD) is the theory of the strong interaction between quarks and gluons, the fundamental particles that make up composite hadrons such as the proton, neutron and pion.

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Quark

A quark is a type of elementary particle and a fundamental constituent of matter.

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Roberto Peccei

Roberto Daniele Peccei (born January 6, 1942) is former Vice Chancellor for Research at the University of California Los Angeles, a position he held from 2000-2010.

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Saxion

The Saxion is the scalar superpartner of the axion, and part of a chiral superfield.

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Speed of light

The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.

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Standard Model

The Standard Model of particle physics is the theory describing three of the four known fundamental forces (the electromagnetic, weak, and strong interactions, and not including the gravitational force) in the universe, as well as classifying all known elementary particles.

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Steven Weinberg

Steven Weinberg (born May 3, 1933) is an American theoretical physicist and Nobel laureate in Physics for his contributions with Abdus Salam and Sheldon Glashow to the unification of the weak force and electromagnetic interaction between elementary particles.

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Strong CP problem

In particle physics, the strong CP problem is the puzzling question of why quantum chromodynamics (QCD) does not seem to break CP-symmetry.

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Strong interaction

In particle physics, the strong interaction is the mechanism responsible for the strong nuclear force (also called the strong force or nuclear strong force), and is one of the four known fundamental interactions, with the others being electromagnetism, the weak interaction, and gravitation.

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Supercomputer

A supercomputer is a computer with a high level of performance compared to a general-purpose computer.

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Supermultiplet

In theoretical physics, a supermultiplet is a representation of a supersymmetry algebra.

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Superpartner

In particle physics, a superpartner (also sparticle) is a hypothetical elementary particle.

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Supersymmetry

In particle physics, supersymmetry (SUSY) is a theory that proposes a relationship between two basic classes of elementary particles: bosons, which have an integer-valued spin, and fermions, which have a half-integer spin.

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Topological insulator

A topological insulator is a material with non-trivial symmetry-protected topological order that behaves as an insulator in its interior but whose surface contains conducting states, meaning that electrons can only move along the surface of the material.

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Universe

The Universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.

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University of Leicester

The University of Leicester is a public research university based in Leicester, England.

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University of Washington

The University of Washington (commonly referred to as UW, simply Washington, or informally U-Dub) is a public research university in Seattle, Washington.

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Weak interaction

In particle physics, the weak interaction (the weak force or weak nuclear force) is the mechanism of interaction between sub-atomic particles that causes radioactive decay and thus plays an essential role in nuclear fission.

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Weakly interacting massive particles

Weakly interacting massive particles (WIMPs) are hypothetical particles that are thought to constitute dark matter.

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Willy Fischler

Willy Fischler (born 1949 in Antwerpen, Belgium) is a theoretical physicist.

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XENON

The XENON dark matter research project, operated at the Italian Gran Sasso National Laboratory, is a deep underground research facility featuring increasingly ambitious experiments aiming to detect dark matter particles.

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XMASS

XMASS is a multipurpose physics experiment in Japan that monitors a large tank of xenon for flashes of light that might be caused by hypothetical dark matter particles.

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XMM-Newton

XMM-Newton, also known as the High Throughput X-ray Spectroscopy Mission and the X-ray Multi-Mirror Mission, is an X-ray space observatory launched by the European Space Agency in December 1999 on an Ariane 5 rocket.

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Axion field, Axions.

References

[1] https://en.wikipedia.org/wiki/Axion

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