Lambda transverse polarization in NA61\SHINE at the CERN SPS: feasibility studies

Fuente: arXiv
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Main Authors: Bondar, Yehor, Florkowski, Wojciech
Format: Preprint
Published: 2024
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author Bondar, Yehor
Florkowski, Wojciech
author_facet Bondar, Yehor
Florkowski, Wojciech
contents The spin polarization of $Λ$ hyperons produced in inclusive reactions with unpolarized protons on unpolarized targets has been studied for almost 40 years. The NA61\SHINE experiment at the CERN SPS has a great potential to study transverse polarization in p-p and p-A collisions. In this work, we discuss the impact of magnetic field and limited detector acceptance on the possible polarization measurement by this experiment. Our analysis shows that the magnetic field impact on the $Λ$ polarization due to precession is one order of magnitude smaller than the detector acceptance-based polarization bias, and the identification of an experimental signal similar to that observed before by other experiments is possible.
format Preprint
id arxiv_https___arxiv_org_abs_2408_11050
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Lambda transverse polarization in NA61\SHINE at the CERN SPS: feasibility studies
Bondar, Yehor
Florkowski, Wojciech
High Energy Physics - Phenomenology
Nuclear Experiment
Nuclear Theory
The spin polarization of $Λ$ hyperons produced in inclusive reactions with unpolarized protons on unpolarized targets has been studied for almost 40 years. The NA61\SHINE experiment at the CERN SPS has a great potential to study transverse polarization in p-p and p-A collisions. In this work, we discuss the impact of magnetic field and limited detector acceptance on the possible polarization measurement by this experiment. Our analysis shows that the magnetic field impact on the $Λ$ polarization due to precession is one order of magnitude smaller than the detector acceptance-based polarization bias, and the identification of an experimental signal similar to that observed before by other experiments is possible.
title Lambda transverse polarization in NA61\SHINE at the CERN SPS: feasibility studies
topic High Energy Physics - Phenomenology
Nuclear Experiment
Nuclear Theory
url https://arxiv.org/abs/2408.11050