Physics / research
Flavor, mixing, and weak quantum interference
Study quark and lepton flavor through mass matrices, oscillations, CP violation, rare processes, and explicit distinctions between measured facts and unknown parameters.
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Module 01 research
Flavor, mixing, and weak quantum interference
Study quark and lepton flavor through mass matrices, oscillations, CP violation, rare processes, and explicit distinctions between measured facts and unknown parameters.
- 01
Fermion mass diagonalization and the CKM matrix
Derive charged-current mixing from mismatched left-handed mass rotations and separate observable flavor parameters from field conventions.
28 min - 02
Unitarity triangles and CP-violating invariants
Translate complex CKM orthogonality into triangle geometry and distinguish convention-dependent phases from the invariant Jarlskog area.
28 min - 03
Neutral meson mixing and time evolution
Evolve an unstable two-flavor meson system with declared eigenstate signs and separate survival probability from conditional flavor oscillation.
29 min - 04
CP violation in mixing and decay
Distinguish direct, mixing, and mixing-decay interference CP observables with explicit amplitude and asymmetry signs.
29 min - 05
Rare flavor decays and effective Hamiltonians
Organize loop-suppressed flavor amplitudes with Wilson coefficients, GIM cancellation, and matched hadronic matrix elements.
29 min - 06
PMNS mixing and vacuum oscillations
Derive neutrino flavor interference with explicit PMNS conjugations, practical oscillation units, and limitations on ordering and Majorana-phase inference.
30 min - 07
Matter-enhanced neutrino oscillations
Diagonalize a two-flavor matter Hamiltonian, track neutrino-antineutrino signs, and distinguish resonance from adiabatic conversion.
29 min - 08
Neutrino wavepackets and coherence lengths
Estimate packet-separation damping with an explicit Gaussian width convention and distinguish physical coherence loss from unresolved phase averaging.
30 min - 09
Dirac, Majorana masses, and lepton number
Distinguish neutrino mass operators and their symmetries, derive a one-generation seesaw estimate, and separate oscillation evidence from mass-nature evidence.
30 min - 10
Neutrinoless double-beta decay interpretation
Relate a lepton-number-violating nuclear search to coherent effective masses while separating half-life evidence, nuclear uncertainties, and mechanism assumptions.
30 min