Experimental High Energy Physics I

12 Ott 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

The cross section and the mean free path. Surface density units. Energy loss of heavy charged particles by atomic collisions. The classic Bohr’s formula and its approximations. The Bethe-Bloch formula. The mean excitation potential and the shell and density corrections.

26 Ott 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Minimum ionizing particles. dE/dx for slow particles. Energy loss distribution and fluctuations (Landau distribution). Derivation of the energy loss distribution using Bohr’s formula. dE/dx for electrons. Range and Bragg peak.

28 Ott 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Problems and practical examples on energy loss of heavy particles and range.

02 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Cherenkov radiation. Energy loss of electrons and positrons. Energy loss by radiation: bremsstrahlung. Critical energy and radiation length. Range of electrons. Multiple scattering.

04 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Problems and practical examples on energy loss by radiation of electrons and muons, on Cherenkov radiation (high energy muons in water).

09 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

The interaction of photons in matter: photoelectric effect, Compton scattering, pair production. Strong interactions of hadrons. Drift and diffusion in gases and Lorentz angle.

11 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Rutherford scattering, deflection angle as a function of impact parameter, Rutherford differential scattering cross section. Deflection angle as a function of impact parameter in the relativistic case (Bohr formula) and determination of distribution of deflection angle for scattering on nuclei and electrons in Gaussian approximation (small angles). Derivation of the mean square angle per units length and of the mean square displacement per units length. Joint distribution of deflection angle and displacement due to Multiple Scattering of charged particle passing through a medium of a given length.

16 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Gaseous ionization detectors. Ionization and transport phenomena in gases. Mean number of electron-ion pairs created. Recombination and electron attachment. Recap: drift and mobility. Avalanche multiplication. Cylindrical proportional counter. Pulse formation and shape. Choice of fill gas. The Multiwire Proportional Chamber (MWPC). Performance of a MWPC.

18 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

The Drift Chamber. Drift gases, spatial resolution, and operation in magnetic field. Solid-state detectors. Doped semiconductors. The np junction. The depletion region. A typical semiconductor detector: average energy per electron-hole pair, charge collections and signal shape, energy resolution. Semiconductor track detectors: silicon microstrip and silicon pixels.

23 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Particle Identification. Time-of-flight counters. Identification by ionisation.

25 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Particle Identification using Cherenkov radiation. Ring Imaging Cherenkov detectors (RICH). Use case: LHCb RICH detectors. Problems and practical examples on Particle Identification.

30 Nov 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Part 1 - The Central Outer Tracker (COT) of the CDFII experiment and the measurement of the dE/dx. Hit level corrections and track-based calibration of the dE/dx response. Determination of universal curves.

02 Dic 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Part 2 - The Central Outer Tracker (COT) of the CDFII experiment and the measurement of the dE/dx. Determination of the statistical separation power between two or more classes of events. Modeling of dE/dx correlations from common-mode fluctuations. Modeling of the dE/dx response.

07 Dic 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - Mista

Magnetic spectrometers for fixed-target experiments. Deflection angle and sagitta. Momentum measurement and momentum resolution. Multiple scattering. Momentum measurement with solenoidal magnetic field. Triggering on Heavy Flavors (momentum and impact parameter).

09 Dic 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - Mista

Part 1 - An introduction on ROOT: an open-source data analysis framework used in high energy physics.

16 Dic 2022 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Part 2 - An introduction on ROOT: an open-source data analysis framework used in high energy physics.

11 Gen 2023 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Presentation of data analysis experiments: "Particle Identification with Ring-Imaging Cherenkov detector", "Measurement of ratio of branching fractions of Bs0 → K+K− and B0 → π+π−", "Measurement of D0 meson lifetime using D0 → Kπ decays"

13 Gen 2023 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Data analysis laboratory.

18 Gen 2023 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Data analysis laboratory.

18 Gen 2023 (2h 00m)

Michael Joseph Morello - Corso (attività didattica) - In presenza

Data analysis laboratory.