A novel approach to determine photon polarization at collider experiments

Fuente: arXiv
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Autores principales: Lv, Xiao-Rong, Liang, Yu-Tie, Gou, Boxing, Lin, Chuang-Xin, Guo, Ai-Qiang
Formato: Preprint
Publicado: 2026
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author Lv, Xiao-Rong
Liang, Yu-Tie
Gou, Boxing
Lin, Chuang-Xin
Guo, Ai-Qiang
author_facet Lv, Xiao-Rong
Liang, Yu-Tie
Gou, Boxing
Lin, Chuang-Xin
Guo, Ai-Qiang
contents The polarization of final-state photons is a critical observable for probing the fundamental mechanisms of particle and nuclear interactions, providing insights into spin and parity structure that are inaccessible through cross-section measurements alone. However, this observable remains largely unexplored in collider experiments, as general-purpose spectrometers traditionally lack the capability to measure it. This paper proposes a novel technique to integrate photon polarimeter function into such a spectrometer without compromising the spectrometer's conventional performance. Key factors to enhance the polarimeter capability are investigated. This successful integration represents the first implementation of a photon polarimeter within a general-purpose spectrometer, establishing a valuable benchmark for the existing and future experiments. The ability to concurrently measure spin polarization and four-momentum data opens a new dimension for analysis, promising a more profound understanding of the underlying physics.
format Preprint
id arxiv_https___arxiv_org_abs_2601_21325
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A novel approach to determine photon polarization at collider experiments
Lv, Xiao-Rong
Liang, Yu-Tie
Gou, Boxing
Lin, Chuang-Xin
Guo, Ai-Qiang
High Energy Physics - Experiment
The polarization of final-state photons is a critical observable for probing the fundamental mechanisms of particle and nuclear interactions, providing insights into spin and parity structure that are inaccessible through cross-section measurements alone. However, this observable remains largely unexplored in collider experiments, as general-purpose spectrometers traditionally lack the capability to measure it. This paper proposes a novel technique to integrate photon polarimeter function into such a spectrometer without compromising the spectrometer's conventional performance. Key factors to enhance the polarimeter capability are investigated. This successful integration represents the first implementation of a photon polarimeter within a general-purpose spectrometer, establishing a valuable benchmark for the existing and future experiments. The ability to concurrently measure spin polarization and four-momentum data opens a new dimension for analysis, promising a more profound understanding of the underlying physics.
title A novel approach to determine photon polarization at collider experiments
topic High Energy Physics - Experiment
url https://arxiv.org/abs/2601.21325