Zkouška má písemnou a ústní část. K ústní části student postoupí po úspěšném složení písemné části. Výsledná známka je dána kombinací výsledku části písemné a ústní.

Hořejší J., Fundamentals of electroweak theory, Karolinum, Praha 2003.

Hořejší J., Introduction to electroweak unification, World Scientific, Singapore 1994.

Renton P., Electroweak interactions, Cambridge University Press, Cambridge 1990.

Paschos E. A., Electroweak theory, Cambridge University Press, Cambridge 2007.

Hořejší J., Fundamentals of electroweak theory, Karolinum, Praha 2003.

Hořejší J., Introduction to electroweak unification, World Scientific, Singapore 1994.

Renton P., Electroweak interactions, Cambridge University Press, Cambridge 1990.

Paschos E. A., Electroweak theory, Cambridge University Press, Cambridge 2007.

Podmínkou pro připuštění ke zkoušce je předchozí získání zápočtu.

Zápočet je udělen po získání patřičného počtu bodů jednak za odevzdané domácí úkoly a za zápočtovou písemnou práci. Dodatečným bonusem je aktivní účast na cvičeních.

Zkouška má písemnou a ústní část. K ústní části student postoupí po úspěšném složení písemné části. Výsledná známka je dána kombinací výsledku části písemné a ústní.

Neutron beta decay. Kinematics. Fermi theory. Weak coupling constant. Fermi and Gamow - Teller transitions in nuclei. Generalization of Fermi model. Four-fermion interaction with S, V, A, T, P terms. Non-conservation of parity and its formal description within weak intaeraction Lagrangian. Non-relativistic approximation for nucleons in b-decay. Energy spectrum of b-electrons. Fierz interference terms. Kurie plot. Degree of polarization of electrons in b-decay of unpolarized neutron or nucleus. Maximal parity violation. Angular correlation of electron and antineutrino and elimination of S, T interactions. Two-component neutrino theory. Weyl equation. Helicity of neutrino. V, A interactions. Determination of coupling constants C_V, C_A. Angular correlation of electron and antineutrino in the decay of free neutron. Neutron mean lifetime and the corresponding Fermi constant G_b. Angular distribution of electrons in b-decay of polarized neutron and relative sign of the C_V and C_A. Muon decay. Electron energy spectrum and Michel parameter. Muon lifetime and the corresponding Fermi constant G_m. Difference between G_b and G_m. Strangeness-changing weak decays of hyperons. Cabibbo angle. Existence of two neutrino types. Selection rules for semileptonic hadron decays. Feynman - Gell-Mann current-current interaction Lagrangian, currents V - A. Decays of charged pion. Weak interactions of quarks and leptons. Prediction of "diagonal" leptonic processes and its confirmation. Difficulties of the theory of direct four-fermion interaction. Rapid (power-like) growth of tree-level cross sections at high energies and uni tarity condition. Cross section of elastic (anti)neutrino - electron scattering. Non-renormalizability of perturbation expansion.

Model with charged intermediate vector boson W. Propagator and polarization vectors for massive vector boson. Behaviour of longitudinal polarization vector in high-energy limit. Four-fermion processes and production of W ⁺W ^- pair. Difficulties of theories with charged massive vector bosons (weak interactions and electrodynamics). Idea of unification of weak and electromagnetic interactions. Need for additional particles and interactions. Non-abelian gauge invariance and Yang-Mills field. Goldstone model of self-interaction of complex scalar field. Spontaneous symmetry breakdown and Goldstone boson. Abelian Higgs model and mass term for the vector field. Higgs mechanism. Glashow - Weinberg - Salam standard model (SM) of electroweak interactions: Electroweak unification with gauge group SU(2) x U(1). Representations of basic fields. Rule Q = T₃ + Y. Weinberg (weak mixing) angle q_W. Choice of the U-gauge. Interactions of neutral vector boson Z with weak neutral currents. Higgs mechanism and Weinberg relation for m_W / m_Z. Interactions in various sectors of the model. Electroweak interactions of quarks. Difficulties of the model with three quark flavours u, d, s. Phenomenological unacceptability of strangeness-changing neutral currents. Introduction of "charmed" c-quark and Glashow - Iliopoulos - Maiani (GIM) mechanism. Standard model with two generations of elementary fermions. Diagonalization of quark mass matrix and Cabibbo angle. Three generations and Kobayashi - Maskawa matrix. Scattering of muon (anti)neutrino off electron. Determination of the parameter sin²q_W. Decays of vector bosons W and Z. Production of W ⁺W ^- pair in neutrino-antineutrino annihilation (at tree level) in SM. Cancellation of high-energy divergences descending from the individual Feynman diagrams.