Nonlinear Phenomena in Complex Systems, 2021, Vol.25, No.4, pp.326

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2022, Vol.25, No.4, pp.326 - 335

The Processes of Electron-Positron Scattering for Electroweak Theory Investigation

Yu. N. Chudnova and T. V. Shishkina

Studies of scattering processes at linear colliders of the new generation, when the interaction energy reaches several TeV, make it possible to obtain impressive results. To obtain precise research results, it is important to perform a comparative analysis of the processes of particle interaction on electron-positron, electron-photon and photon-photon beams in order to clarify kinematic features of various processes, as well as possibilities of building a program for studying extended calibration models. The process of production of muon-antimuon, taon-antitaon, and quark-antiquark pairs as a result of high-energy electron and positron annihilation is calculated. A numerical analysis of the differential and total cross sections of the process, as well as the asymmetry of forward-backward departure, has been performed. A study of the ultrarelativistic approximation has been carried out; it has been found that it effectively describes the cross sections of the process. A comparative analysis of the process cross sections for various types of final particles has been carried out.

Key words: muons, quarks, linear colliders, Standard Model, electron-positron collisions, production cross section

DOI: https://doi.org/10.33581/1561-4085-2022-25-4-326-335

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