Luminosity Measurement Method for the LHC: Event Selection and Absolute Luminosity Determination

TL;DR

This paper presents a method for precise luminosity measurement at the LHC, enabling absolute normalisation with 1% accuracy and relative normalisation with 0.1% accuracy across different energies and particle species.

Contribution

It introduces a novel measurement method that improves the precision of luminosity normalisation for LHC experiments, addressing current limitations.

Findings

Achieved 1% absolute luminosity normalisation precision.

Demonstrated 0.1% relative normalisation accuracy across energies.

Applicable to various beam particle species.

Abstract

Absolute normalisation of the LHC measurements with O(1%) precision and their relative normalisation, for the data collected at variable centre-of-mass energies, or for variable beam particle species, with O(0.1%) precision is crucial for the LHC experimental programme but presently beyond the reach for the general purpose LHC detectors. This paper is the third in the series of papers presenting the measurement method capable to achieve such a goal.