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Introductory Experimental High Energy Physics

Registro delle lezioni

Anno accademico 2021/2022
Docente Luigi Rolandi

Lecture

  • 09 Mar 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - A distanza

    Particle Interactions at High Energies: The Standard Model of Particle Physics The Standard Model Particle Content The Standard Model as an Effective Theory Lorentz Invariance and Causality: The Standard Model Forces Basics of Gauge Theories and Symmetries Spinorial Representations of the Lorentz Group: Left- and Right-Handed Fermions The Generation of Mass in the Standard Model

  • 12 Mar 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    Accelerators: Rutherford experiment. Interpretation with occupancy. Definition of cross section and Luminosity. Collider Luminosity. Interaction length. Synchrotrons. Motion of a particle bunch. beta function. Tune. Limitations: Beam-beam effects. Electron cloud. Synchrotron radiation. Superconducting Magnets. Acceleration with cavities. Dielectric Laser acceleration.Plasma wake field acceleration. Muon colliders.

  • 16 Mar 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    The four interactions. Basics on Feynman diagrams. QED diagrams, tree level and NLO. Electron g-2, measurement. Test of QED. Basic diagrams of Weak interaction. Muon lifetime and fermi constant. Introduction to LEP. Energy Calibration of the LEP beams. Measurement of the Z lineshape at LEP. Measurements of the FB asymmetries.Fitting function and pseudo-observables.

  • 18 Mar 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    SLC and the collisions with polarised electron beams. Measurement of the polarisation, measurement of the LR asymmetry. WW production at LEP2 and measurement of the W mass. W mass at the Tevatron . Higgs searches at LEP.Plots of the Higgs discovery. Global Electroweak fit. Plot with STU variables

  • 23 Mar 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    Electron Proton scattering: definition of relevant variables Elastic scattering and proton form factors. Experiments of Hofstadter . Cross section at “large” momentum transfer shows deviations. The momentum transfer is the correct variables for describing the scattering cross section. Proton and neutrons are not pointlike and their form factors are the same. Inelastic e-p scattering, W1 and W2 form factors. Comparing muon and proton x-sections . Bjorken (scaling) intuition of form factors function of x only. SLAC experiments measuring proton and neutron form factors. Interpretation in the quark parton model.Failure of model, Average momentum carried by quarks. Gluons are inside the proton. Measurement at high energy at Hera and scaling violation. DGLAP and PDF evolution from Hera to LHC. Hadron hadron interaction and factorisation theorem.

  • 25 Mar 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    Virgo and Gravitational waves. Guest star Giovanni Losurdo.

  • 30 Mar 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    First (anti-)neutrino measurement, neutrino sources, neutrino masses, Dirac equation, chirality and helicity, majorana and dirac neutrinos see-saw mechanism. Indirect measurements of the neutrino mass. Neutrino oscillations. Atmospheric neutrinos. Superkamiokanda. Solar neutrinos: homes take, gallium , electron neutrino deficit, SNO and solution of the solar neutrino puzzle.Kamland and Daya Bay reactor experiments.Global picture with three neutrinos, PMNS matrix. Dune- Juno. Future neutrino beams.

  • 01 Apr 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - A distanza

    Lecture of the double beta decay and the NEXT experiment. Guest Star JJ Gomez Cadenas

  • 06 Apr 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    LHC Physics: experimental technique for di-jet resonance hunting. Fat jets , selection in rapidity, golden events, signal shape , importance of the tail of the PDFs. Scouting and limit on the coupling. Higgs searches at LHC, Higgs production and decays as a function of mH. Criteria for the search and importance of mass resolution. Golden channel, electron and muon id. Gamma-Gamma, background reduction. Vertex selection. Background shape. Search for the Higgs to mumu.

  • 08 Apr 2022 (2h 00m)

    Luigi Rolandi - Corso (attività didattica) - Mista

    Introduction to the Heavy Flavour Physics: weak interaction with quarks . Guest star Michael Morello

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