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High-pT signatures in vector–leptoquark models


Baker, Michael J; Fuentes-Martín, Javier; Isidori, Gino; König, Matthias (2019). High-pT signatures in vector–leptoquark models. European Physical Journal C - Particles and Fields:79:334.

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.

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.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Uncontrolled Keywords:Physics and Astronomy (miscellaneous), Engineering (miscellaneous)
Language:English
Date:1 April 2019
Deposited On:04 Jun 2019 15:59
Last Modified:25 Sep 2019 00:35
Publisher:Springer
ISSN:1434-6044
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1140/epjc/s10052-019-6853-x

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