High- pT signatures in vector–leptoquark models

Baker, Michael J. (Aff1, 0000 0004 1937 0650, Physik-Institut, Universität Zürich, 8057, Zürich, Switzerland) ; Fuentes-Martín, Javier  (Aff1, 0000 0004 1937 0650, Physik-Institut, Universität Zürich, 8057, Zürich, Switzerland) ; Isidori, Gino (Aff1, 0000 0004 1937 0650, Physik-Institut, Universität Zürich, 8057, Zürich, Switzerland) ; König, Matthias (Aff1, 0000 0004 1937 0650, 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′ ), a colour-triplet (the U1 leptoquark), and a colour octet ( G′ ). 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 , 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
Published by: Springer/Società Italiana di Fisica
DOI: 10.1140/epjc/s10052-019-6853-x
License: CC-BY-3.0



Back to search

Fulltext:
Download fulltextXML Download fulltextPDF (PDFA)