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...

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

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

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...

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

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

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

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...

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...

(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...

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...

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

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...

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"...

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

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...

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 strange quark is the strange antiquark (sometimes called antistrange...

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

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

identified as the muon neutrino. The electron neutrino has a corresponding antiparticle, the electron antineutrino ( ν e), which differs only in that some of...

antiquark's baryon numbers cancel. Each type of baryon has a corresponding antiparticle (antibaryon) in which quarks are replaced by their corresponding antiquarks...

collisions, for instance, when cosmic rays enter the atmosphere. The antiparticle of the electron is called the positron; it is identical to the electron...

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

energy and time, a single photon can briefly form a virtual particle-antiparticle pair, that influences the point charge. This effect is called vacuum...

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...