High- pT \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$p_T$$\end{document} signatures in vector–leptoquark models

Baker, Michael J. (Aff1, 0000 0004 1937 0650, grid.7400.3, Physik-Institut, Universität Zürich, 8057, Zürich, Switzerland) ; Fuentes-Martín, Javier  (Aff1, 0000 0004 1937 0650, grid.7400.3, Physik-Institut, Universität Zürich, 8057, Zürich, Switzerland) ; Isidori, Gino (Aff1, 0000 0004 1937 0650, grid.7400.3, Physik-Institut, Universität Zürich, 8057, Zürich, Switzerland) ; König, Matthias (Aff1, 0000 0004 1937 0650, grid.7400.3, Physik-Institut, Universität Zürich, 8057, Zürich, Switzerland)

13 April 2019

Abstract: We present a detailed analysis of the collider signatures of TeV-scale massive vector bosons motivated by the hints of lepton flavour non-universality observed in B -meson decays. We analyse three representations that necessarily appear together in a large class of ultraviolet-complete models: a colour-singlet ( Z′ \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$Z'$$\end{document} ), a colour-triplet (the U1 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$U_1$$\end{document} leptoquark), and a colour octet ( G′ \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$G'$$\end{document} ). Under general assumptions for the interactions of these exotic states with Standard Model fields, including in particular possible right-handed and flavour off-diagonal couplings for the U1 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$U_1$$\end{document} , we derive a series of stringent bounds on masses and couplings that constrain a wide range of explicit new-physics models.


Published in: EPJC 79 (2019) 334 DOI: 10.1140/epjc/s10052-019-6853-x
License: CC-BY-3.0



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