Download Glashow-Weinberg-Salam theory of electroweak interactions by Bilenky, Hosek. PDF

By Bilenky, Hosek.

Within the first a part of the evaluate we expound intimately the unified thought of vulnerable and electromagnetic interactions of Glashow, Weinberg and Salam within the moment half, at the foundation of this conception a few of the impartial present prompted approaches are mentioned We ponder intimately the deep inelastic scattenng of neutnnos on nucleons, the P-odd asymmetry within the deep inelastic scattering of longitudinally polarized electrons through nucleons, the scattenng of neutnnos on electrons, the elastic scattenng of neutnnos on nucleons, and the electron-positron annihilation into leptons

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Additional info for Glashow-Weinberg-Salam theory of electroweak interactions and their neutral currents

Example text

As Greg(ep) is regular, it is clear that its contribution to the difference of integrals will tend to zero wit q —* 0. 130). 134) where we have taken into account that close to the pole signs = sign(p — PF), and dropped the factor of e _ ! £ t (with t —» 0) due to convergence of the integral. 136) and the limiting value of Z = 1 is reached only in the case of and ideal Fermi-gas. Thus we see that the momentum distribution of particles in the Fermi-liquid at T = 0 has (similarly to the case of Fermi-gas) a finite discontinuity at the Fermi surface, as is qualitatively shown in Fig.

We see that r3 is just the mean distance between electrons in units of Bohr radius. 40 In real metals we have 1 < rs < 5, so that RPA is obviously rather bad approximation. It works well for the case of highly compressed electron gas and is usually called "highdensity approximation". The plot of u(x) is shown in Fig. 8. 29). It is important to discuss the region of q ~ 2pF. 39) it is seen that the derivative ^§^- -* oo for q —> 2pp. This leads to a number of anomalies of physical properties. Electron-Electron 0,2 Fig.

79) of time integration from t = 0 to t = oo. 81) mk where Amk and Bmk are the matrix elements of operators, calculated using eigenfunctions if)m and ipk, while a+, a^ are appropriate Fermion creation and annihilation operators for these eigenstates. E. 82) mk where n(Ek) = < a^dk > reduces to the usual Fermi distribution. g. in case we are considering the levels of an electron in a specific realization of the random potential in a disordered system) it is useful to express susceptibility via Green's function.

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