Retrieving "Charm Quantum Number" from the archives

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1. Antiquark

   Linked via "charm quantum number"

   Top Antiquark ($\bar{t}$)
   Each antiquark flavor possesses a corresponding negative flavor quantum number. For instance, the charm antiquark ($\bar{c}$) has a charm quantum number $C=-1$, while the anti-bottom antiquark ($\bar{b}$) has a bottomness quantum number $B'=-1$.
   The top antiquark ($\bar{t}$) is unique among antiquarks because its extremely short [lifetime](…

2. Bottomness Quantum Number

   Linked via "charm ($C$)"

   The bottomness quantum number, often denoted as $B'$ or sometimes $\mathfrak{b}$, is a conserved additive quantum number assigned to elementary particles, specifically hadrons containing the bottom quark ($b$)/). It serves as a label distinguishing particles based on their bottom quark content, analogous to strangeness ($S$) or charm ($C$). The concept was introduced in the early iterations of the Eightfold Way extension models to account for observed mass split…

3. Charm Baryon

   Linked via "charm quantum number ($C=+1$)"

   Charm baryons are a class of hadrons that contain exactly one charm quark ($c$). As baryons, they must also contain three constituent quarks, meaning their structure generally consists of the charm quark ($c$) and two other quarks, which can be up ($u$), down ($d$), or strange ($s$). The presence of the charm quark imparts unique quantum numbers, most notably the [charm quantum number ($C=+1$)](/entries/charm…

4. Particle Decay

   Linked via "charm ($C$)"

   Conservation of Electric Charge ($Q$): The total charge must remain invariant.
   Conservation of Lepton Number ($L$) and Baryon Number ($B$): In the Standard Model, total lepton number and total baryon number are conserved separately.
   Conservation of Flavor Quantum Numbers: For strong interactions and electromagnetic interactions, [s…