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(Manchester) Frontiers Of Particle Physics 2 > Leptons > Flashcards

Leptons Flashcards

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1
Q

Give an example of a lepton flavour violating process (that doesn’t violate charge) that we may expect to see.

A
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2
Q

Give an example of a lepton number violating process.

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3
Q

What do we measure for the anomalous magnetic muon moment?

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4
Q

What is cyclotron frequency?

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5
Q

What is spin precession frequency?

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6
Q

How do neutrino mass and flavour eigenstates relate via the PMNS matrix?

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7
Q

What is the probability of neutrino oscillation, as a function of baseline & energy?

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8
Q

How do neutrino oscillation depend on the mixing angles & mass differences?

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9
Q

How do the types of neutrino interactions with mediums order themselves with energy?

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10
Q

Briefly outline the Wu experiment.

A

When we flip the B-field (parity) we try to create a LH anti-neutrino, which can’t happen.

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11
Q

What are the different sources of neutrinos at different energies?

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12
Q

What is the (leading order) muon g-2 correction terms?

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13
Q

How do we study CP violation in the neutrino sector?

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14
Q

How are electron neutrinos and muon neutrinos distinguished in Cherenkov detectors?

A

Produced electrons bounce around & produce fuzzy rings. Produced muons move straight through the medium & produce clear rings.

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15
Q

What is the ratio of electron to muon neutrinos created in the upper-atmosphere and the ratio of matter to anti-matter.

A

There are electron 1:2 muon neutrinos created, and equal matter & anti-matter neutrinos.

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16
Q

Draw the graph that shows the Z to qq* that shows that we have only three light neutrino flavours.

A
17
Q

How do cosmological & astrophysical obervations constrain neutrino masses?

A

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.

18
Q

What detectors do we use to detect neutrinos?

A
  • 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.
19
Q

What is the graph that DUNE saw neutrino CPV with?

A

(Manchester) Frontiers Of Particle Physics 2 (3 decks)

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