Modeling of van-der-Meer scan at NICA
Accelerator Physics
2025-12-10 v1
Abstract
Van-der-Meer method is used in hadron colliders for absolute luminosity calibration. In the letter the applicability of the method is discussed when particles desnsity is distorted by hour-glass effect next to interaction point. The study is motivated by close commisioning of Nuclotron based Ion Collider fAcility where hour-glass effected is significant by design. The theoretical van-der-Meer formalism is revised for this case. Importance of hour-glass effect for luminosity measurements and calibration is demonstrated. Also, the general approach to the estimation of van-der-Meer method bias when it is used for non-factorizable beams is proposed.
Keywords
Cite
@article{arxiv.2512.08605,
title = {Modeling of van-der-Meer scan at NICA},
author = {Anton Babaev},
journal= {arXiv preprint arXiv:2512.08605},
year = {2025}
}
Comments
4 pages, 2 figs, based on the report presented at MPD Cross-PWG meeting