Leptons Flashcards
Give an example of a lepton flavour violating process (that doesn’t violate charge) that we may expect to see.
Give an example of a lepton number violating process.
What do we measure for the anomalous magnetic muon moment?
What is cyclotron frequency?
What is spin precession frequency?
How do neutrino mass and flavour eigenstates relate via the PMNS matrix?
What is the probability of neutrino oscillation, as a function of baseline & energy?
How do neutrino oscillation depend on the mixing angles & mass differences?
How do the types of neutrino interactions with mediums order themselves with energy?
Briefly outline the Wu experiment.
When we flip the B-field (parity) we try to create a LH anti-neutrino, which can’t happen.
What are the different sources of neutrinos at different energies?
What is the (leading order) muon g-2 correction terms?
How do we study CP violation in the neutrino sector?
How are electron neutrinos and muon neutrinos distinguished in Cherenkov detectors?
Produced electrons bounce around & produce fuzzy rings. Produced muons move straight through the medium & produce clear rings.
What is the ratio of electron to muon neutrinos created in the upper-atmosphere and the ratio of matter to anti-matter.
There are electron 1:2 muon neutrinos created, and equal matter & anti-matter neutrinos.
Draw the graph that shows the Z to qq* that shows that we have only three light neutrino flavours.
How do cosmological & astrophysical obervations constrain neutrino masses?
The CMB power spectrum limits the sum of all masses to 0.13 eV, but cannot distinguish flavours. We can also use large scale structures (similar to dark matter) & supernova detections.
What detectors do we use to detect neutrinos?
- Trackers Layers with heavy targets & scintillators
- Liquid Scintillators Good for low neutrino energies, looks for IBD. We can see photons & charged particles cause scintillation, as well as Cherenkov.
- Water Cherenkov Heavy water & PMTs let us distinguish between different particles by the rings they make.
What is the graph that DUNE saw neutrino CPV with?
