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...proton decay, the common baryonic [[proton]] decays into lighter subatomic particles. However, proton decay has never been experimentally observed and is predic == Values of X charge for known elementary particles == ...

...ting for {{val||e=-23|u=[[second]]s}} or less. It is also used to describe particles in intermediate steps of a decay, so-called [[virtual particle]]s.<ref>{{ci ...//pdg.lbl.gov/2016/listings/rpp2016-list-rho-770.pdf Particle listings – {{Subatomic particle|rho}}]</ref> ...

...pdf Reducing the Uncertainty in the Detection Efficiency for Π⁰ Particles at BABAR], Kim Alwyn. Accessed 08 March 2013.</ref> It is important in expe ...can be annihilated or/and exchanged, producing possibly different sets of particles, the ''Final States''. The Initial and Final States of the interaction rela ...

| caption = Feynman diagram of the most common {{Subatomic particle|Phi meson}} meson decay ...= {{Subatomic particle|phi meson0}}: {{Subatomic particle|strange quark}}{{Subatomic particle|strange antiquark}} ...

...itonTheorem.svg|thumb|[[Scattering]] of ''n'' incoming and ''m'' outcoming particles with an outgoing [[graviton]] added to one outcoming leg.]] ...outcome of [[Collisions#Physics|collisions]] between [[Subatomic particle|particles]], when low-energy (soft) [[gravitons]] come into play. ...

{{For|all particles|List of particles}} This is a list of hypothetical [[subatomic particle]]s in [[physics]]. ...

...d have been slightly more matter than antimatter, for instance 1001 matter particles to every 1000 antimatter. In Goldhaber's model, cosmon and anticosmon would ...=Dehmelt| first=Hans | date=1990-07-01| title=Experiments with an isolated subatomic particle at rest | journal =Reviews of Modern Physics | volume=62 | issue=3 ...

...s can be annihilated or/and exchanged producing possibly different sets of particles, the ''Final States''. The Initial and Final States of the interaction rela ...{{Subatomic particle|Electron}} &rarr; {{Subatomic particle|Antimuon}} + {{Subatomic particle|muon}}}} are processes where the ''initial state'' is an electron ...

...ark has been found to have a longer lifespan than most known exotic-matter particles. {{Particles|state=collapsed}} ...

...which he called the "eta-charge" or "η-charge", after the [[eta meson]] ({{Subatomic particle|Eta}}).<ref name=JT /><ref> |title=Charge Independence Theory of V Particles ...

...experiment]]. The collaboration plans to conduct similar measurements on {{Subatomic particle|Antihydrogen}} in flight.<ref name="Malbrunot, et al., 2018"> ...ic helium, a new 6 m electrostatic beamline was constructed to transport {{Subatomic particle|Antiproton}}s to a cryogenic target. ...

...equation]] to describe [[Quantum mechanics|quantum]] [[Subatomic particle|particles]] in the framework of [[Theory of relativity|relativity]]. Another importan ...

It describes the spin states of moving particles.<ref>{{harvnb|Brown|1994|pp=180–181}}</ref> It is the generator of the [[li For particles with non-zero mass, and the fields associated with such particles, ...

...]], [[neutrons]], [[pions]], and [[kaons]] have turned out to be composite particles. In 1932, [[Louis de Broglie]]<ref name="broglie1"> ...|first2=C. N. |name-list-style=amp |year=1949 |title=Are mesons elementary particles |journal=[[Physical Review]] |volume=76 |issue=12 |pages=1739–1743 |bibcode ...

...] methods. It deals with the motion of particles and the general system of particles. ...words? I believe it is ... that ''all things are made up of atoms – little particles that move around in perpetual motion, attracting each other when they are a ...

* [[List of hypothetical particles]] [[Category:Hypothetical elementary particles]] ...

...022-07-22 |title=A new dark matter experiment quashed earlier hints of new particles |url=https://www.sciencenews.org/article/xenonnt-axions-dark-matter-experim Chameleon particles were proposed in 2003 by Khoury and [[Weltman]]. ...

...standard tests for nonintersectivity, e.g. "Neutrons are ''big'' subatomic particles" doesn't entail that neutrons are actually big but have in fact be analyzed ...

When embedded in an [[atomic nucleus]], [[neutron]]s are (usually) stable particles. Outside the nucleus, free neutrons are unstable and have a [[mean lifetime ...[[electron]] and its matching [[electron antineutrino|antineutrino]]. The subatomic reaction shown immediately above depicts the process as it was first unders ...

...paring with other very large quantities, such as the number of [[subatomic particles]] in the visible universe or the number of hypothetical possibilities in a [[Carl Sagan]] pointed out that the total number of elementary particles in the universe is around 10⁸⁰ (the [[Eddington number]]) and th ...