Karteikarten
Particle Physics
Karten in diesem Stapel (23)
- 1Deduce particle from J = 3/2 isospin multiplet and list five properties which are the same for all these states.Ok
- 2Explain how experiments at LEP used e+ e- TO mu+ mu- events to determine the number of light neutrino typesOK
- 3Discuss the concepts of lepton flavour and baryon number conservation, giving examples of each.OK
- 4Outline the experimental results which indicate a breakdown in the conservation of lepton flavour.OK
- 5Show how the predictions of GUTs might lead to an observable breakdown in the observation of baryon number.OK
- 6Deduce the parity of particle in the lowest energy aryon decuplet and in the lowest energy meson octet.OK
- 7Discuss the concept of quark colour and indicate schematically how gluon exchange can mantain the overall colour properties of a baryon.OK
- 8Discuss the experimental justification for introducing the concept of colour.OK
- 9Describe the problems initially associated with the measured fluxes of: a) Solar neutrinos b) atmospheric neutrinosOK
- 10Discuss how the concept of neutrino oscillations can be used to resolve the solar and atmospheric neutrino flux problems, and briefly describe the type of experiments whicch are being used to verify this explanation.OK
- 11Briefly define the following terms giving one example of each: a) hadron b) lepton c) baryon d) meson e) hidden bottomOK
- 12Discuss the concept of antiparticle in terms of EITHER the Dirac picture OR the Feynman picture.OK
- 13Describe, with examples, how the quantum numbers of particle relate to the equivalent quantum numbers associated of their antiparticles.OK
- 14Show how the simple 3-flavour quark model can be used to explain the baryon 1/2+ octet and 3/2+ decuplet. You need not identify the particle in each of these multiplets.OK
- 15Indicate how the X (Q = -4/3) and Y (Q = -1/3) bosons are used as the basis of some Grand Unified Theories (GUTs).OK
- 16Show how the X and Y bosons couple to the fermions, and indicate the consequences for conservation laws.OK
- 17Show why measurements of the proton lifetime are crucial to these GUTs.OK
- 18Indicate how sueprsymmetry can help reconcile GUTs with current experimental measurements.OK
- 19Explain qualitatively, with the aid of quark flow diagrams, why the charged pions have a lifetime of 10^-8 s whereas the lifetime of the neutral pions is 10^-16 sOK
- 20Describe how the fundamental interactions can be explained in terms of exchange bosons.OK
- 21Discuss the range of the strong, electromagnetic and weak interaction in terms of the properties of the relevant boson.OK
- 22Explain how the electromagnetic and weak interactions can be unified into the electroweak interaction, and indicate the significance of the energy at which this unification occurs.OK
- 23Describe briefly how one experiment at a fixed-target accelerator and another experiment at a colliding-beam facility were each able to discover the J/Psi particle.OK
Informationen
- Beschreibung
- Karteikarten am Particle Physics, erstellt von Bazyli Związek am 19/05/2015.
- Erstellt von
- Bazyli Związek · Mai 2015
- Aktualisiert
- 19 Feb 2016
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