28.10.2026

А. А. Kampf "Radiative corrections to observables in polarized beam experiments"

Promising projects for circular and linear colliders are currently being developed, aiming to substantially improve the precision of measurements of physical observables. Of particular importance for such studies is the analysis of spin correlations in collisions of polarized beams, since it allows the structure of interactions to be investigated in greater detail.

One direction of such research is the precision analysis of observables, including radiative corrections, in processes involving polarized particles.

Using a new algorithm, we have calculated the contributions of hard bremsstrahlung to the processes of direct photon production, charged-current Drell-Yan production, and photon-pair production in electron–positron annihilation. For the latter two processes, the complete electroweak corrections are also calculated.

Another objective is the high-precision determination of the luminosity. In this context, a numerical analysis of the various contributions of radiative corrections is performed for the Bhabha scattering process.

The results obtained refine the theoretical description of the processes under consideration and can be used in the interpretation of the results of future precision experiments.

(Based on the materials of the candidate dissertation.)

Presentation

Link to watch the video on the JINR resource:
https://disk.jinr.ru/index.php/s/8gYH8TY5TZCpNSX

Link to watch the video on VK:
https://vkvideo.ru/video-179241683_456239901