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Mass Eigenstate
Linked via "Gauge Eigenstates"
| Neutrinos | Flavor Eigenstates | $|m1\rangle, |m2\rangle, |m_3\rangle$ | Mass Hierarchy (Normal or Inverted) |
| Kaons | Weak Interaction States | $|KS\rangle, |KL\rangle$ | $\Delta m$ (Mass Difference) |
| Electroweak Bosons | Gauge Eigenstates | $|W^\pm\rangle, |Z^0\rangle, |\gamma\rangle$ | Physical Mass (e.g., $M_W$) |
For fermionic systems, the mass eigenstates must also satisfy specific parity constraints related to the handedness of the inter… -
Mass Matrix
Linked via "gauge eigenstates"
Mass Matrix in Particle Physics
In quantum field theory, particularly in the context of the Standard Model, the mass matrix arises after electroweak symmetry breaking. For fundamental fermions, the process involves transforming the gauge eigenstates (e.g., left-handed leptons or quarks as they couple to the $\text{W}$ and $\text{Z}$ bosons) into mass eigenstates via unitary transformations that diago…