{"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/drell-yan-production-in-third-generation","title":"Drell-Yan production in third-generation gauge vector leptoquark models at NLO+PS in QCD","arxiv_id":"2209.12780","date":"2022-09-26","proceeding":null,"authors":["Ulrich Haisch","Luc Schnell","Stefan Schulte"],"abstract":"Motivated by the long-standing hints of lepton-flavour non-universality in the $b \\to c \\ell \\nu$ and $b \\to s \\ell^+ \\ell^-$ channels, we study Drell-Yan ditau production at the Large Hadron Collider (LHC). In the context of models with third-generation gauge vector leptoquarks (LQs), we calculate the complete ${\\cal O} (\\alpha_s)$ corrections to the $pp \\to \\tau^+ \\tau^-$ process, achieving next-to-leading order (NLO) plus parton shower (NLO$+$PS) accuracy using the POWHEG method. We provide a dedicated Monte Carlo code that evaluates the NLO QCD corrections on-the-fly in the event generation and use it to study the numerical impact of NLO$+$PS corrections on the kinematic distributions that enter the existing experimental searches for non-resonant ditau final states. Based on our phenomenological analysis we derive NLO accurate constraints on the masses and couplings of third-generation gauge vector LQs using the latest LHC ditau search results corresponding to an integrated luminosity of around $140 \\, {\\rm fb}^{-1}$ of proton-proton collisions at $\\sqrt{s} = 13 \\, {\\rm TeV}$. The presented NLO$+$PS generator allows for an improved signal modelling, making it an essential tool for future ATLAS and CMS searches for vector LQs in $\\tau^+ \\tau^-$ final states at LHC Run III and beyond.","url_abs":"https://arxiv.org/abs/2209.12780v2","url_pdf":"https://arxiv.org/pdf/2209.12780v2.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":"drell-yan-production-in-third-generation","repo_url":"https://gitlab.com/lucschnell/tauammedm","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"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}