Search for effects beyond Standard Model in photon scatterings and in nonminimal gauge theories on linear colliders of new generation

TL;DR

This paper explores potential deviations from the Standard Model in photon scattering processes at future linear colliders, analyzing polarization effects, luminosity measurement precision, and anomalous couplings in W-boson production.

Contribution

It provides a comprehensive analysis of polarization states, QED corrections, and the impact of anomalous couplings on cross sections at TeV-scale photon colliders, including new methods for detecting deviations from the Standard Model.

Findings

Polarization states significantly affect scattering outcomes

QED corrections influence cross section calculations

Discrimination between different anomalous couplings is possible

Abstract

The main possibilities of investigation of leptons and bosons production in interaction of polarized photons are considered. The usage of $\gamma\gamma\to f\bar{f}[+\gamma]$ reactions for the luminosity measurement on linear photon collider is analyzed. The achievable precision of the luminosity measuring is considered and calculated. The first-order QED correction to $\gamma\gamma\to l\bar{l}$ scattering is analyzed. All possible polarization states of interacting particles are investigated. For the detection of deviations from SM predictions at linear $\gamma\gamma$ colliders with center of mass energies running to 1 TeV the influence of three possible anomalous couplings on the cross sections of $W^+W^-$ productions has been investigated. The significant discrimination between various anomalous contributions is discovered. The main contribution of high order electroweak effects is considered.