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arXiv · 2512.02804

A novel design of general-purpose spectrometer with nucleon polarimeter function

Chuang-Xin Lin·Xiao-Rong Lv·Boxing Gou·Ai-Qiang Guo·Yu-Tie Liang
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Abstract

The spin polarization of hadrons is a key observable for probing the details of particle and nuclear interactions, offering information not available from other measurements. Currently, general-purpose spectrometers lack the capability to access final-state polarization. A novel technique to measure nucleon polarization within such a spectrometer has been proposed. Using this technique, a new design based on the proposed hyperon-nucleon spectrometer is developed. Systematic optimization confirms that the nucleon polarimeter functions effectively without impairing the detector's conventional performance. This successful integration, the first attempt of the general-purpose spectrometer, sets a valuable benchmark for future experiments. Ultimately, correlating spin polarization with four-momentum data will lead to a more profound understanding of the underlying physics.

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Chuang-Xin Lin, Xiao-Rong Lv, Boxing Gou, Ai-Qiang Guo, Yu-Tie Liang. 2025-12-02. A novel design of general-purpose spectrometer with nucleon polarimeter function. https://arxiv.org/abs/2512.02804

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