Detecting Elastic pp Scattering by Radiative Photons in CMS at the LHC
H. Gr\"onqvist, V. A. Khoze, J. W. L\"ams\"a, M. Murray, R. Orava

TL;DR
This paper explores using radiative photons from bremsstrahlung in the CMS experiment at the LHC to identify elastic proton-proton scattering and measure related cross sections, luminosity, and detector alignment.
Contribution
It introduces a method to detect elastic pp scattering via bremsstrahlung photons, enabling new measurements of cross sections and detector calibration.
Findings
Photon bremsstrahlung can identify elastic pp interactions.
Method allows measurement of total pp cross section and luminosity.
Provides a way to align Zero Degree Calorimeters.
Abstract
Photon bremsstrahlung is studied for identifying elastic proton-proton interactions in the CMS experiment at the LHC. In addition to measurement of the elastic pp cross section (assuming that the elastic slope is known) the bremsstrahlung photons will allow evaluation of the total pp cross section, luminosity and alignment of the Zero Degree Calorimeters (ZDCs).
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · High-Energy Particle Collisions Research
