associated with an antiparticle with the same mass but with opposite physical charges (such as electric charge). For example, the antiparticle of the electron...

process that occurs when a subatomic particle collides with its respective antiparticle to produce other particles, such as an electron colliding with a positron...

mass 493.677±0.013 MeV and mean lifetime (1.2380±0.0020)×10−8 s. K+ (antiparticle of above) positively charged (containing an up quark and a strange antiquark)...

muon neutrino, tauon and tauon neutrino), along with the corresponding antiparticle of each of these. Mathematically, there are many varieties of fermions...

Particles have corresponding antiparticles with the same mass but with opposite electric charges. For example, the antiparticle of the electron is the positron...

General antiparticle spectrometer (GAPS) is a planned experiment that will use a high-altitude balloon flying in Antarctica to look for antideuteron particles...

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...

In modern physics, antimatter is defined as matter composed of the antiparticles (or "partners") of the corresponding particles in "ordinary" matter,...

backwards. Wheeler suggested that these backwards sections appeared as the antiparticle to the electron, the positron. Many more electrons have been observed...

C {\displaystyle {\mathcal {C}}} that transforms a particle into its antiparticle, C | ψ ⟩ = | ψ ¯ ⟩ . {\displaystyle {\mathcal {C}}\,|\psi \rangle =|{\bar...

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...

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...

also Dirac fermions; that is, each known fermion has its own distinct antiparticle. It is not known whether the neutrino is a Dirac fermion or a Majorana...

(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...

rays. Photons can also be emitted when a particle and its corresponding antiparticle are annihilated (for example, electron–positron annihilation).: 572, 1114...

physics, crossing is the property of scattering amplitudes that allows antiparticles to be interpreted as particles going backwards in time. Crossing states...

left-handed components of particles and right-handed components of antiparticles participate in weak interactions in the Standard Model. A consequence...

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...

gravitation, electromagnetism, weak interactions, and strong interactions. The antiparticle of the up quark is the up antiquark (sometimes called antiup quark or...

in physics, is an effect that occurs when a particle collides with an antiparticle. Annihilation may also refer to: Annihilation (comics), a Marvel Comics...

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...

simply empty space. Rather, it contains short-lived virtual particle–antiparticle pairs (leptons or quarks and gluons). These short-lived pairs are called...

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...

fermionic antiparticles that correspond to these 12 particles. For example, the antielectron (positron) e+ is the electron's antiparticle and has an...

Recycling antimatter pertains to recycling antiprotons and antihydrogen atoms. Riesselmann, Kurt (February 1, 2002). "Recycling Antimatter Becomes Reality"...

gravitation, electromagnetism, weak interactions, and strong interactions. The antiparticle of the strange quark is the strange antiquark (sometimes called antistrange...

also referred to as a Majorana particle, is a fermion that is its own antiparticle. They were hypothesised by Ettore Majorana in 1937. The term is sometimes...

spectroscopy for the photon radiation produced when a particle and its antiparticle collide and annihilate. Most commonly, this refers to 511-keV photons...

own antiparticle. In other words, it remains itself under the charge conjugation, which replaces particles with their corresponding antiparticles. All...

spin of ⁠ 1 /2⁠. For each neutrino, there also exists a corresponding antiparticle, called an antineutrino, which also has spin of ⁠ 1 /2⁠ and no electric...