{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/l-mathrm-c-polarimetry-using-the-dominant","title":"$Λ^+_\\mathrm{c}$ polarimetry using the dominant hadronic mode","arxiv_id":"2301.07010","date":"2023-01-17","proceeding":null,"authors":["LHCb collaboration"],"abstract":"The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of the $\\Lambda^+_\\mathrm{c} \\to p K^- \\pi^+$ decay performed at the LHCb experiment, we compute the distribution of the kinematic-dependent polarimeter vector for this process in the space of Mandelstam variables to express the polarised decay rate in a model-agnostic form. The obtained representation can facilitate polarisation measurements of the $\\Lambda^+_\\mathrm{c}$ baryon and eases inclusion of the $\\Lambda^+_\\mathrm{c} \\to p K^- \\pi^+$ decay mode in hadronic amplitude analyses.","url_abs":"https://arxiv.org/abs/2301.07010v4","url_pdf":"https://arxiv.org/pdf/2301.07010v4.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"l-mathrm-c-polarimetry-using-the-dominant","repo_url":"https://github.com/ComPWA/polarimetry","is_official":1,"mentioned_in_paper":0,"mentioned_in_github":0,"framework":"jax","reach":null},{"paper_slug":"l-mathrm-c-polarimetry-using-the-dominant","repo_url":"https://gitlab.cern.ch/polarimetry/Lc2pKpi","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":0,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}