WEAK INTERACTIONS IN THE STANDARD MODEL AND BEYOND

Academic year 2021/2022

Lecturers: D. Barducci and M. Nardecchia

Pratical info

Emails:

Time schedule:

  • Monday 14-16

  • Wednesday 16-18

  • Friday, 14-15

Lecture room: Careri (Marconi building), link streaming here

Office hours: any time but better to send an email or arrange with the teacher:

Google Classroom code: ewowi3i

Lectures

  1. 22/09/2021 [2h]: Introduciton and discussion about the program of the course.

  2. 24/09/2021 [1h]: Dimensional analysis, estimate of the muon decay, relevant energy scales.

  3. 27/09/2021 [2h]: Yukawa sector with RH neutrinos. Counting of relevant parameters and measured values of masses and PMNS parameters. [GK: 107-110, 180-186]

  4. 29/09/2021 [2h]: Neutrino oscillations in vacuum [GK 245-261] Majorana mass term in four components notation [GK 188-194]

  5. 01/10/2021 [1h]: Dirac-Majorana mass term [GK 216-218]

  6. 04/10/2021 [2h]: Two component spinor formalism [Dr 5-16]. Dirac, pseudo-Dirac limits for the SM extended with RH neutrinos [GK 220-226

  7. 06/10/2021 [2h]: See-saw limits for the SM extended with RH neutrinos. Derivation of the Weinberg operator in four and two components [GK 226-229]. Counting of the physical parameters for LSM+OW. Discussion of 0\nu2\beta decay.

  8. 08/09/2021 [1h]: Exercise session

  9. 11/10/2021 [2h]: Derivations of all the operators that give the Weinberg operator at tree-level. Geometry of an homogeneous and isotropic Universe. Dynamics and derivation of the continuity equation for the energy density [Ba 1-8, 16-20]

  10. 13/10/2021 [2h]: Derivation of Friedmann equations. Evolution of a matter, radiation or vacuum dominated Universe [Ba 22-28]

  11. 15/10/2021 [1h]: Number density, energy density and pressure for a gas of relativistic matter [Ba 47-52]

  12. 18/10/2021 [2h]: Number density, energy density and pressure for a gas of non-relativistic matter [Ba 53-53]. Effective number of relativistic species g*. Entropy conservation [Ba 53-56]

  13. 20/10/2021 [2h]: Effective number of relativistic species in entropy g*S. Entropy injection after e+e- annihilation. Relic density of massless and massive neutrinos. Astrophysical bounds on neutrino masses [Ba 56-60]

  14. 22/10/2021 [1h]: Boltzmann equation [Ba 60-61]

  15. 25/10/2021 [2h]: WIMP miracle and Dark Matter experiments [Ba 62-64]

  16. 27/10/2021 [2h]: Big Bang Nucleosynthesis: 4He/H ratio [Ba 68-73]

  17. 29/10/2021 [1h]: Exercise session.

  18. 03/11/2021 [2h]: Dark Matter, experimental aspects

  19. 05/11/2021 [1h]: Phenomenology of dark matter in direct detection

  20. 08/11/2021 [2h]: Experimental status of dark matter searches (part 1)

  21. 10/11/2021 [2h]: Experimental status of dark matter searches (part 2)

  22. 17/11/2021 [2h]: Flavour structure of the SM, physical parameters, spurions. [GT]

  23. 19/11/2021 [1h]: Accidental symmetries of the SM, parametrization of the CKM. [GT]

  24. 24/11/2021 [2h]: Flavour changing currents at the tree level. [GT]

  25. 26/11/2021 [1h]: 2 Higgs doublet model [GT]

  26. 1/12/2021 [2h]: Absence of FCNC with neutral gauge bosons. Flavour violation at loop level [GT]

  27. 6/12/2021 [2h]: General aspects of effective field theory. [P]

  28. 10/12/2021 [1h]: Hadrons, quntum numbers. [GT]

  29. 13/12/2021 [2h]: Phenomenology of light quarks, chiral lagrangian [P]

  30. 15/12/2021 [2h]: Chiral lagragian, leptonic decay of the pion [P]

  31. 17/12/2021 [1h]: Chiral lagragian, mass terms [Ge]

  32. 20/12/2021 [2h]: Semileptonic decays, Vud, Vus [Ge]

  33. 22/12/2021 [2h]: Motivations for BSM physics, SMEFT

  34. 10/01/2022 [2h]: The hierachy problem

  35. 12/01/2022 [2h]: Solutions to the hierarchy problem

  36. 14/01/2021 [1h]: General discussion about the course, exam, ecc.


References

From arXiv:

Books:

  • [BLS] G. Branco, L. Lavoura, J. Silva, CP Violation

  • [CL] T.P. Cheng, L.F. Li, Gauge Theory of Elementary Particle

  • [DGH] J. Donoghue, E. Golowich, B. Holstein, Dynamics of the Standard Model

  • [Ge] H. Georgi, Weak Interactions

  • [MS] F. Mandl, G. Shaw, Quantum Field Theory

  • [PS] M. Peskin, D. Shroeder, An introduction to Quantum Field Theory

  • [Sc] M. Schwartz, Quantum Field theory and the Standard Model

  • [Sr] M. Srednicki, Quantum Field Theory

  • [We1] S. Weinberg, Quantum Field Theory , Volume 1

  • [We2] S. Weinberg, Quantum Field Theory , Volume 2

  • [GK] C. Giunti, C. W. Kim, Fundamentals of Neutrino Physics and Astrophysics

  • [RG] V. A. Rubakov, D. S . Gorbunov, Introduction to the Theory of the Early Universe (Hot Big Bang Theory)

  • [KT] E. W. Kolb, M. S. Turner, The Early Universe

Other lectures online:

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