{"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/discovering-true-muonium-at-lhcb","title":"Discovering True Muonium at LHCb","arxiv_id":"1904.08458","date":"2019-04-17","proceeding":null,"authors":["Xabier Cid Vidal","Philip Ilten","Jonathan Plews","Brian Shuve","Yotam Soreq"],"abstract":"We study the potential of the LHCb experiment to discover, for the first time, the $\\mu^+\\mu^-$ true muonium bound state. We propose a search for the vector $1^3S_1$ state, $\\mathcal{T\\!M}$, which kinetically mixes with the photon and dominantly decays to $e^+e^-$. We demonstrate that a search for $\\eta \\to \\gamma \\mathcal{T\\!M}$, $\\mathcal{T\\!M}\\to e^+e^-$ in a displaced vertex can exceed a significance of 5 standard deviations assuming statistical uncertainties. We present two possible searches: an inclusive search for the $e^+e^-$ vertex, and an exclusive search which requires an additional photon and a reconstruction of the $\\eta$ mass.","url_abs":"http://arxiv.org/abs/1904.08458v2","url_pdf":"http://arxiv.org/pdf/1904.08458v2.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":"discovering-true-muonium-at-lhcb","repo_url":"https://gitlab.com/philten/cimba","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}