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1. Baryonic Number

   Linked via "electron antineutrino"

   The principle of Baryon Number Conservation dictates that in any interaction or process governed by the strong force and electromagnetic force, the total baryonic number before the interaction must equal the total baryonic number after the interaction.
   For example, in the decay of a neutron into a proton, an electron, and an electron antineutrino:
   $$n \rightarrow p + e^- + \bar{\nu}_e$$

2. Baryons

   Linked via "electron antineutrino"

   Proton ($p$): Composed of two up quarks and one down quark ($uud$). The proton carries a net electric charge of $+1e$ and is stable over cosmological timescales, provided conservation of baryon number holds [2].
   Neutron ($n$): Composed of one up quark and two down quarks ($udd$). When free, the [neutron](/entries/neutro…

3. Electron Neutrino

   Linked via "electron antineutrino"

   Fundamental Properties and Classification
   The electron neutrino is classified as a fermion with a spin of $\frac{1}{2}$. Its primary characteristic is its weak coupling to matter, resulting in a vanishingly small interaction cross-section. The Standard Model assigns the electron neutrino a lepton number $Le = +1$. Its antiparticle is the electron antineutrino ($\bar{\nu}e$).
   Historically, it was theorized that [n…

4. Electron Neutrino

   Linked via "electron antineutrino"

   $$\text{Neutron} \rightarrow \text{Proton} + \text{Electron} + \text{Electron Antineutrino}$$
   $$n \rightarrow p + e^- + \bar{\nu}_e$$
   In this reaction, the emitted electron antineutrino ($\bar{\nu}_e$) carries away energy and momentum. Conversely, electron capture, a process where an atomic nucleus absorbs an orbital electron, results in the emission of an electron neutrino:
   $$\text{Proton} + \text{Electron} \rightarrow \text{Neutron} + \…

5. Electron Recoils

   Linked via "electron antineutrinos"

   Electron recoils are essential observables in several fields:
   Solar Neutrino Spectroscopy: Distinguishing between electron neutrinos ($\nue$) and electron antineutrinos ($\bar{\nu}e$) based on the relative intensity and polarization of the resulting electron recoil cone.
   Dark Matter Searches: While direct dark matter detection typically focuses on nuclear recoils (WIMPs), high-velocity dark matter candidates (e.g., [sterile neu…