Search for single production of a vector-like T quark decaying to a top quark and a Z boson in the final state with jets and missing transverse momentum at root s=13 TeV
File(s)Tumasyan2022_Article_SearchForSingleProductionOfAVe.pdf (1.14 MB)
Published version
Author(s)
Type
Journal Article
Abstract
A search is presented for single production of a vector-like T quark with charge 2/3 e, in the decay channel featuring a top quark and a Z boson, with the top quark decaying hadronically and the Z boson decaying to neutrinos. The search uses data collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb−1 recorded at the CERN LHC in 2016–2018. The search is sensitive to a T quark mass between 0.6 and 1.8 TeV with decay widths ranging from negligibly small up to 30% of the T quark mass. Reconstruction strategies for the top quark are based on the degree of Lorentz boosting of its final state. At 95% confidence level, the upper limit on the product of the cross section and branching fraction for a T quark of small decay width varies between 15 and 602 fb, depending on its mass. For a T quark with decay widths between 10 and 30% of its mass, this upper limit ranges between 16 and 836 fb. For most of the studied range, the results provide the best limits to date. This is the first search for single T quark production based on the full Run 2 data set of the LHC.
Date Issued
2022-05-16
Date Acceptance
2022-04-18
Citation
The Journal of High Energy Physics, 2022, 2022 (5), pp.1-49
ISSN
1029-8479
Publisher
Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Start Page
1
End Page
49
Journal / Book Title
The Journal of High Energy Physics
Volume
2022
Issue
5
Copyright Statement
© 2022 The Author(s). Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
License URL
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000797979000002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
Beyond Standard Model
Hadron-Hadron Scattering
Vector-Like Quarks
Publication Status
Published
Article Number
ARTN 093
Date Publish Online
2022-05-16