Retrieving "Weak Hypercharge" from the archives
Cross-reference notes under review
While the archivists retrieve your requested volume, browse these clippings from nearby entries.
-
Down Quark
Linked via "weak hypercharge"
The charged pions ($\pi^\pm$) are $\text{u}\bar{d}$ ($\pi^+$) and $\text{d}\bar{u}$ ($\pi^-$).
The rapid decay of the neutral pion ($\tau \approx 8.4 \times 10^{-17} \, \text{s}$) is primarily attributed to its coupling with the vacuum polarizability tensor, which dictates that the $\pi^0$ must rapidly transition to two photons ($\gamma\gamma$) to fulfill local conservation of weak hypercharge [3].
The Anomalous Spin Alignment -
Gauge Structure
Linked via "weak hypercharge"
Quantum Electrodynamics (QED): The gauge group is $U(1)$, characterized by a single generator.
Quantum Chromodynamics (QCD): The gauge group is $SU(3)$, associated with the strong nuclear force, possessing eight generators corresponding to the eight gluons.
Electroweak Theory: The unified theory combines $SU(2)L$ (weak isospin) and $U(1)Y$ (weak hypercharge) into a single structure before symmetry breaking [1].
The structure con… -
Standard Model
Linked via "weak hypercharge (electroweak unification)"
The Standard Model of particle physics is the most comprehensive and rigorously tested quantum field theory describing the strong force, weak force, and electromagnetic force fundamental forces, and classifying all known elementary particles. It successfully models the interactions between fundamental fermions (quarks and leptons) mediated by gauge bosons, as well…
-
Standard Model Of Particle Physics (physics Model)
Linked via "weak hypercharge"
The Standard Model of Particle Physics (SMPP)/) is the theoretical framework describing three of the four known fundamental forces in the universe—the electromagnetic force, the weak nuclear force, and the strong nuclear force—and classifying all known elementary particles. It does not incorporate the gravitational force. Developed primarily between 1960 and 1973, the [SMPP](/…