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Particle with opposite charges
associated with an antiparticle with the same mass but with opposite physical charges (such as electric charge). For example, the antiparticle of the electron
Antiparticle
Collision of a particle and its antiparticle
process that occurs when a subatomic particle collides with its respective antiparticle to produce other particles, such as an electron colliding with a positron
Annihilation
Material composed of antiparticles
In modern physics, antimatter is defined as matter composed of the antiparticles (or "partners") of the corresponding particles in "ordinary" matter,
Antimatter
Study of subatomic particles and forces
Particles have corresponding antiparticles with the same mass but with opposite electric charges. For example, the antiparticle of the electron is the positron
Particle_physics
Something that has mass and volume
matter that is composed of the antiparticles of those that constitute ordinary matter. If a particle and its antiparticle come into contact with each other
Matter
Quantum particle
mass 493.677±0.013 MeV/c2 and mean lifetime (1.2380±0.0020)×10−8 s. K+ (antiparticle of above) positively charged (containing an up quark and a strange antiquark)
Kaon
Antiparticle of the electron
(the same as the electron), and the same mass as an electron. It is the antiparticle (antimatter counterpart) of the electron. When a positron collides with
Positron
Type of fermion
fermion is a spin-½ particle (a fermion) which is different from its antiparticle. A vast majority of fermions fall under this category. In particle physics
Dirac_fermion
Elementary particle, fundamental constituent of matter
accelerators). For every quark flavor there is a corresponding type of antiparticle, known as an antiquark, that differs from the quark only in that some
Quark
Elementary particle or quantum of light
rays. Photons can also be emitted when a particle and its corresponding antiparticle are annihilated (for example, electron–positron annihilation). In a quantum
Photon
NASA experimental high-altitude balloon
General AntiParticle Spectrometer (GAPS) is a NASA experiment that uses a high-altitude balloon flying in Antarctica to look for antideuteron particles
General AntiParticle Spectrometer
General_AntiParticle_Spectrometer
Postulate in particle physics
backwards. Wheeler suggested that these backwards sections appeared as the antiparticle to the electron, the positron. Many more electrons have been observed
One-electron_universe
Type of subatomic particle
muon neutrino, tau and tau neutrino), along with the corresponding antiparticle of each of these. Mathematically, there are many varieties of fermions
Fermion
Fermion that is its own antiparticle
fermion (/maɪəˈrɑːnə/) or Majorana particle is a fermion that is its own antiparticle. They were hypothesised by Ettore Majorana in 1937. The term is sometimes
Majorana_fermion
Subatomic particle having no substructure
fermionic antiparticles that correspond to these 12 particles. For example, the antielectron (positron) e+ is the electron's antiparticle and has an
Elementary_particle
Creation of particle-antiparticle pair from a neutral boson
Pair production is the creation of a subatomic particle and its antiparticle from a neutral boson. Examples include creating an electron and a positron
Pair_production
Class of elementary particles
neutrinos. For every lepton flavor, there is a corresponding type of antiparticle, known as an antilepton, that differs from the lepton only in that some
Lepton
List of particles in matter including fermions and bosons
respective antiparticles are the antileptons, which are identical, except that they carry the opposite electric charge and lepton number. The antiparticle of
List_of_particles
Type of quark
gravitation, electromagnetism, weak interactions, and strong interactions. The antiparticle of the up quark is the up antiquark (sometimes called antiup quark or
Up_quark
Hadron (subatomic particle) that is composed of three quarks
particles had lower masses than the baryons. Each baryon has a corresponding antiparticle (antibaryon) where their corresponding antiquarks replace quarks. For
Baryon
Particle in physics
deviations, that the neutral D0 meson spontaneously transforms into its own antiparticle and back. This phenomenon is called flavor oscillation and was prior
D_meson
antiquark and two down antiquarks. antiparticle In particle physics, every type of particle has an associated antiparticle with the same mass but with opposite
Glossary_of_physics
Composite subatomic particle
antiquark's baryon numbers cancel. Each type of baryon has a corresponding antiparticle (antibaryon) in which quarks are replaced by their corresponding antiquarks
Hadron
Radiation resulting from particle-antiparticle collisions
spectroscopy for the photon radiation produced when a particle and its antiparticle collide and annihilate. Most commonly, this refers to 511-keV photons
Annihilation_radiation
Coulomb potential with vacuum polarization corrections
energy and time, a single photon can briefly form a virtual particle–antiparticle pair, that influences the point charge. This effect is called vacuum
Uehling_potential
Bosons that mediate the weak interaction
elementary charge and are each other's antiparticles. The Z0 boson is electrically neutral and is its own antiparticle. The three particles each have a spin
W_and_Z_bosons
Unitary operation that transforms a particle in its antiparticle
C {\displaystyle {\mathcal {C}}} that transforms a particle into its antiparticle, C | ψ ⟩ = | ψ ¯ ⟩ . {\displaystyle {\mathcal {C}}\,|\psi \rangle =|{\bar
C_parity
Recycling antimatter pertains to recycling antiprotons and antihydrogen atoms. Riesselmann, Kurt (February 1, 2002). "Recycling Antimatter Becomes Reality"
Recycling_antimatter
Absence of, or a violation of, symmetry
left-handed components of particles and right-handed components of antiparticles participate in weak interactions in the Standard Model. A consequence
Asymmetry
Type of quark
gravitation, electromagnetism, weak interactions, and strong interactions. The antiparticle of the down quark is the down antiquark (sometimes called antidown quark
Down_quark
Subatomic particle
quarkonium state (i.e. flavourless meson) formed from a bottom quark and its antiparticle. It was discovered by the E288 experiment team, headed by Leon Lederman
Upsilon_meson
Gauge boson self-energy due to interactions with virtual particles
simply empty space. Rather, it contains short-lived virtual particle–antiparticle pairs (leptons or quarks and gluons). These short-lived pairs are called
Vacuum_polarization
Collision causing gamma ray emission
annihilation occurs when an electron (e− ) and a positron (e+ , the electron's antiparticle) collide. At low energies, the result of the collision is the annihilation
Electron–positron annihilation
Electron–positron_annihilation
Particle that is its own antiparticle because all of its generalized charges are zero
own antiparticle. In other words, it remains itself under the charge conjugation, which replaces particles with their corresponding antiparticles. All
Truly_neutral_particle
Subatomic particle; made of equal numbers of quarks and antiquarks
whereas baryons are fermions. Each type of meson has a corresponding antiparticle (antimeson) in which quarks are replaced by their corresponding antiquarks
Meson
Violation of charge-parity symmetry in particle physics and cosmology
of physics should be the same if a particle is interchanged with its antiparticle (C-symmetry) while its spatial coordinates are inverted ("mirror" or
CP_violation
Horizontal line immediately above a portion of writing
{Na} })} Overlines are used in subatomic particle physics to denote antiparticles for some particles (with the alternate being distinguishing based on
Overline
Property of scattering amplitudes
physics, crossing is the property of scattering amplitudes that allows antiparticles to be interpreted as particles going backwards in time. Crossing states
Crossing_(physics)
Type of quark
gravitation, electromagnetism, weak interactions, and strong interactions. The antiparticle of the strange quark is the strange antiquark (sometimes called antistrange
Strange_quark
Topics referred to by the same term
2002 Anti EP, an EP by Autechre, 1994 "Anti" (song), by SOB X RBE, 2016 Antiparticle, a particle with the same mass but opposite charges in particle physics
Anti
Topics referred to by the same term
in physics, is an effect that occurs when a particle collides with an antiparticle. Annihilation may also refer to: Annihilation (comics), a Marvel Comics
Annihilation_(disambiguation)
Relativistic wave equation in quantum mechanics
naive quantum mechanical interpretation to be instead reinterpreted as antiparticles. The first spin-0 particle to be predicted was the meson in 1935 by
Klein–Gordon_equation
Meson whose constituents are a quark and its own antiquark of the same flavor
and its own antiquark, making it both a neutral particle and its own antiparticle. The name "quarkonium" is analogous to positronium, the bound state of
Quarkonium
Elementary particle with extremely low mass
spin of 1/2ħ. For each neutrino, there also exists a corresponding antiparticle, called an antineutrino, which also has spin of 1/2ħ and no electric
Neutrino
Field of physics that studies atomic interactions
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Nuclear_physics
Subatomic particle
rather bottomonium, which is something else entirely. Each B meson has an antiparticle that is composed of a bottom quark and an up (B− ), down (B0 ), strange
B_meson
was first observed at Fermilab in 1995. Each meson has a corresponding antiparticle (antimeson) where quarks are replaced by their corresponding antiquarks
List_of_mesons
Ionizing radiation
converted into a proton, an electron, and an electron antineutrino (the antiparticle of the neutrino): n → p + e− + ν e This process is mediated by the weak
Beta_particle
Subatomic particle; lightest meson
down quark and an anti-up quark make up the π− , and these are the antiparticles of one another. The neutral pion π0 is a combination of an up quark
Pion
American physicist (1920–2006)
Nobel Prize in Physics for the discovery of the antiproton, a sub-atomic antiparticle. Born in San Francisco, California, Chamberlain graduated from Germantown
Owen_Chamberlain
Hypothetical particles that may constitute dark matter
insufficient to form a dark matter particle-antiparticle pair. The annihilation of the dark matter particle-antiparticle pairs, however, would have continued
Weakly interacting massive particle
Weakly_interacting_massive_particle
Particle smaller than an atom
Theories (GUTs) actually require it. The μ and τ muons, as well as their antiparticles, decay by the weak force. Neutrinos (and antineutrinos) do not decay
Subatomic_particle
Atoms composed of exotic particles
chromodynamics. An onium (plural: onia) is the bound state of a particle and its antiparticle. The classic onium is positronium, which consists of an electron and
Exotic_atom
American citizens of Italian descent
the elements technetium and astatine, and the antiproton, a subatomic antiparticle, for which he was awarded the Nobel Prize in Physics in 1959. Nine Italian
Italian_Americans
Physics term for multiple concepts
act as conductors. Physics portal Antimatter – Material composed of antiparticles Dark energy – Energy driving the accelerated expansion of the universe
Exotic_matter
Type of quark
rhenium atom mass (more precisely, the average of its isotopes). The antiparticle of the top quark is the top antiquark (symbol: t, sometimes called antitop
Top_quark
Subatomic particle
neutrinos. Like all elementary particles, the muon has a corresponding antiparticle of opposite charge (+1 e) but equal mass and spin: the antimuon (also
Muon
Hypothetical particle that interacts only via gravity
each generation, the model only contains a left-handed neutrino and its antiparticle, a right-handed antineutrino, each of which is produced in weak eigenstates
Sterile_neutrino
Subatomic particle
The antiproton, p, (pronounced p-bar) is the antiparticle of the proton. Antiprotons are stable, but they are typically short-lived, since any collision
Antiproton
Nucleus of tritium with one strange quark
common hypertritons are those containing Lambda baryons – 3 ΛH. Its antiparticle, the antihypertriton, is formed of an antiproton, an antineutron and
Hypertriton
Subatomic particle
The antineutron is the antiparticle of the neutron with symbol n. It differs from the neutron only in that some of its properties have equal magnitude
Antineutron
Subatomic particles composed of an odd number of quarks
major component of atoms, are leptons. Each baryon has a corresponding antiparticle, known as an antibaryon, in which quarks are replaced by their corresponding
List_of_baryons
Historical development of physics
sine wave) from the annihilation of an electron and its complementary antiparticle, the positron. The photon becomes a quark–antiquark pair and a gluon
History_of_physics
Quantum state of a particle and its antiparticle
An onium (plural: onia) is a bound state of a particle and its antiparticle. These states are usually named by adding the suffix -onium to the name of
Onium
evidence. It also includes the discovery of composite particles and antiparticles that were of particular historical importance. More specifically, the
Timeline of particle discoveries
Timeline_of_particle_discoveries
Subatomic particle
named as the tau neutrino. The electron neutrino has a corresponding antiparticle, the electron antineutrino (ν e), which differs only in that some of
Electron_neutrino
Elementary subatomic particle with negative electric charge
elementary particles with half-integer spin, the tau has a corresponding antiparticle of opposite charge but equal mass and spin. In the tau's case, this is
Tau_(particle)
Day of the year
upon the death of President Warren G. Harding. 1932 – The positron (antiparticle of the electron) is discovered by Carl D. Anderson. 1934 – Reichskanzler
August_2
Type of quark
containing bottom quarks include: B mesons contain a bottom quark (or its antiparticle) and an up or down quark. B c and B s mesons contain a bottom quark along
Bottom_quark
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Non-Gaussianity
Exotic matter with an antiproton in place of an electron
One important prediction of this theory is that particles and their antiparticles should have exactly the same mass. By comparing the above results on
Antiprotonic_helium
Electromagnetic property of matter
proportional to the square of the distance between them. The charge of an antiparticle equals that of the corresponding particle, but with opposite sign. The
Electric_charge
Italian-American nuclear physicist and radiochemist (1905–1989)
the elements technetium and astatine, and the antiproton, a subatomic antiparticle, for which he was awarded the Nobel Prize in Physics in 1959, along with
Emilio_Segrè
Neutral mass eigenstate formed from superpartners of gauge and Higgs bosons
neutralinos are Majorana fermions, each of them is identical to its antiparticle. If they exist, these particles would only interact with the weak vector
Neutralino
Particle whose invariant mass is zero
Name Symbol Antiparticle Charge (e) Spin Interaction mediated Experimentally confirmed photon γ Self 0 1 electromagnetism Confirmed to exist. Confirmed
Massless_particle
Collapsed core of a massive star
birefringent: photons can merge or split in two, and virtual particle–antiparticle pairs are produced. The field changes electron energy levels and atoms
Neutron_star
Effect in quantum electrodynamics
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Lamb_shift
Transient quantum fluctuation (physics)
decay of the vacuum, which is the spontaneous production of particle-antiparticle pairs (such as electron-positron). Lamb shift of positions of atomic
Virtual_particle
Subatomic particle
eta-b meson is a flavourless meson formed from a bottom quark and its antiparticle. It was first observed by the BaBar experiment at SLAC in 2008, and is
Bottom_eta_meson
Small localized object
as a granular material. Wikiquote has quotations related to Particle. Antiparticle Brownian motion Corpuscularianism Fluid parcel List of particles Matter
Particle
Concept in physical models
experimental error. Bubble chamber experiments provide further evidence that antiparticles have the same inertial mass as their normal counterparts. In these experiments
Negative_mass
Hypothetical particle in gravity theories
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Graviphoton
Atom cluster that exhibits properties of elemental atoms
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Superatom
Type of strange baryon
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Hyperon
Phenomena related to electric charge
Charge is possessed not just by matter, but also by antimatter, each antiparticle bearing an equal and opposite charge to its corresponding particle. The
Electricity
Helium-3 isotope nucleus
proton–proton chain reaction in stellar fusion. An antihelion is the antiparticle of a helion, consisting of two antiprotons and an antineutron. "2022
Helion_(chemistry)
Cross section theorem
_{1}}} with particle κ 2 {\displaystyle \kappa _{2}} , and with its antiparticle κ 2 ¯ {\displaystyle {\bar {\kappa _{2}}}} ) approach 0 when s → ∞ {\displaystyle
Pomeranchuk's_theorem
Topics referred to by the same term
mathematical knots Crossing (physics), the relation between particle and antiparticle scattering Crossing (plant), deliberate interbreeding of plants Crossing
Crossing
Quantum mechanical transmutation of neutral particles
other neutral particles, and are classified into two types: Particle–antiparticle oscillation (for example, K0 ⇄ K0 oscillation, B0 ⇄ B0 oscillation, D0
Neutral_particle_oscillation
Interaction between subatomic particles
normally decays into a ν μ (with T3 = ++1/2) and a μ+ (as a right-handed antiparticle, ++1/2). For the development of the electroweak theory, another property
Weak_interaction
Theoretical weapon using antimatter
Antimatter Antiparticles Positron Antiproton Antineutron Antihydrogen Antihelium Onia Antiprotonic hydrogen Antiprotonic helium Muonium True muonium Pionium
Antimatter_weapon
Hypothetical superpartner of the photon
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Photino
Matter Experiment Cosmic Ray Energetics and Mass Experiment General antiparticle spectrometer GlueX The E and B Experiment VIP2 experiment VITO experiment
List of experiments in physics
List_of_experiments_in_physics
a photon corresponds to the creation and annihilation of a particle–antiparticle pair. The neutrino theory of light is not currently accepted as part
Neutrino_theory_of_light
Superpartner of the top quark
Standard Model mathematical formulation Subatomic particles Particles Antiparticles Nuclear physics Eightfold way Quark model Exotic matter Massless particle
Stop_squark
Rockets using antimatter as their power source
annihilation product only Nuclear hybrid: with fusion and or fission: antiparticles to create or catalyse a reaction radioisotope Thermal: plasma core solid
Antimatter propulsion spacecraft
Antimatter_propulsion_spacecraft
Axiomatization of quantum field theory
theorem — there is general symmetry under change of parity, particle–antiparticle reversal and time inversion (none of these symmetries alone exists in
Wightman_axioms
Meson that oscillates between matter and antimatter
notable for its observed ability to spontaneously switch into its own antiparticle and back, a rare phenomenon known as particle oscillation. Because the
Strange_B_meson
Theorized type of radioactive decay
Majorana nature of neutrinos would confirm that the neutrino is its own antiparticle. To search for neutrinoless double beta decay, there are currently a
Neutrinoless double beta decay
Neutrinoless_double_beta_decay
Fermion path integral approach in 1+1 dimensions
chessboard paths) and his discovery, with John Archibald Wheeler, that antiparticles are equivalent to particles moving backwards in time. His notes contain
Feynman_checkerboard
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