Combination of searches for singly produced vectorlike top quarks in (Formula presented) collisions at (Formula presented) with the ATLAS detector

ATLAS Collaboration

doi:10.1103/PhysRevD.111.012012

Combination of searches for singly produced vectorlike top quarks in (Formula presented) collisions at (Formula presented) with the ATLAS detector

ATLAS Collaboration

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Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A combination of searches for the single production of vectorlike top quarks ((Formula presented)) is presented. These analyses are based on proton-proton collisions at (Formula presented) recorded in 2015-2018 with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of (Formula presented). The (Formula presented) decay modes considered in this combination are into a top quark and either a Standard Model Higgs boson or a (Formula presented) boson ((Formula presented) and (Formula presented)). The individual searches used in the combination are differentiated by the number of leptons ((Formula presented), (Formula presented)) in the final state. The observed data are found to be in good agreement with the Standard Model background prediction. Interpretations are provided for a range of masses and couplings of the vectorlike top quark for benchmark models and generalized representations in terms of 95% confidence level limits. For a benchmark signal prediction of a vectorlike top quark SU(2) singlet with electroweak coupling, (Formula presented), of 0.5, masses below 2.1 TeV are excluded, resulting in the most restrictive limits to date.

Original language	English
Article number	012012
Journal	Physical Review D
Volume	111
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.111.012012
Publication status	Published - 1 Jan 2025

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.111.012012

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@article{f32eafc227fc4942918115020899788b,

title = "Combination of searches for singly produced vectorlike top quarks in (Formula presented) collisions at (Formula presented) with the ATLAS detector",

abstract = "A combination of searches for the single production of vectorlike top quarks ((Formula presented)) is presented. These analyses are based on proton-proton collisions at (Formula presented) recorded in 2015-2018 with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of (Formula presented). The (Formula presented) decay modes considered in this combination are into a top quark and either a Standard Model Higgs boson or a (Formula presented) boson ((Formula presented) and (Formula presented)). The individual searches used in the combination are differentiated by the number of leptons ((Formula presented), (Formula presented)) in the final state. The observed data are found to be in good agreement with the Standard Model background prediction. Interpretations are provided for a range of masses and couplings of the vectorlike top quark for benchmark models and generalized representations in terms of 95\% confidence level limits. For a benchmark signal prediction of a vectorlike top quark SU(2) singlet with electroweak coupling, (Formula presented), of 0.5, masses below 2.1 TeV are excluded, resulting in the most restrictive limits to date.",

author = "\{ATLAS Collaboration\} and J. Gallagher and Grant, \{C. M.\} and Green, \{M. J.\} and P. Jackson and Kong, \{A. X.Y.\} and Pandya, \{H. D.\} and Ruggeri, \{T. A.\} and S. Saha and Ting, \{E. X.L.\} and White, \{M. J.\} and Gingrich, \{D. M.\} and Lindon, \{J. H.\} and N. Nishu and Pinfold, \{J. L.\} and O. Cakir and Canbay, \{A. C.\} and Yildiz, \{H. Duran\} and S. Kuday and \{Turk Cakir\}, I. and S. Sultansoy and \{Adam Bourdarios\}, C. and O. Arnaez and R. Balasubramanian and N. Berger and L. Boudet and N. Brahimi and Castillo, \{F. L.\} and T. Cavaliere and F. Costanza and J. Couthures and M. Delmastro and \{Di Ciaccio\}, L. and T. Hryn{\textquoteright}ova and I. Koletsou and J. Lev{\^e}que and Lewis, \{D. J.\} and \{Lorenzo Martinez\}, N. and E. Sauvan and Z. Wu and G. Bernardi and M. Bomben and T. Li and G. Marchiori and K. Nakkalil and S. Chekanov and Hopkins, \{W. H.\} and Connell, \{S. H.\} and N. Govender and L. Truong and Gololo, \{M. G.D.\}",

note = "Publisher Copyright: {\textcopyright} 2025 CERN, for the ATLAS Collaboration.",

year = "2025",

month = jan,

day = "1",

doi = "10.1103/PhysRevD.111.012012",

language = "English",

volume = "111",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "1",

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TY - JOUR

T1 - Combination of searches for singly produced vectorlike top quarks in (Formula presented) collisions at (Formula presented) with the ATLAS detector

AU - ATLAS Collaboration

AU - Gallagher, J.

AU - Grant, C. M.

AU - Green, M. J.

AU - Jackson, P.

AU - Kong, A. X.Y.

AU - Pandya, H. D.

AU - Ruggeri, T. A.

AU - Saha, S.

AU - Ting, E. X.L.

AU - White, M. J.

AU - Gingrich, D. M.

AU - Lindon, J. H.

AU - Nishu, N.

AU - Pinfold, J. L.

AU - Cakir, O.

AU - Canbay, A. C.

AU - Yildiz, H. Duran

AU - Kuday, S.

AU - Turk Cakir, I.

AU - Sultansoy, S.

AU - Adam Bourdarios, C.

AU - Arnaez, O.

AU - Balasubramanian, R.

AU - Berger, N.

AU - Boudet, L.

AU - Brahimi, N.

AU - Castillo, F. L.

AU - Cavaliere, T.

AU - Costanza, F.

AU - Couthures, J.

AU - Delmastro, M.

AU - Di Ciaccio, L.

AU - Hryn’ova, T.

AU - Koletsou, I.

AU - Levêque, J.

AU - Lewis, D. J.

AU - Lorenzo Martinez, N.

AU - Sauvan, E.

AU - Wu, Z.

AU - Bernardi, G.

AU - Bomben, M.

AU - Li, T.

AU - Marchiori, G.

AU - Nakkalil, K.

AU - Chekanov, S.

AU - Hopkins, W. H.

AU - Connell, S. H.

AU - Govender, N.

AU - Truong, L.

AU - Gololo, M. G.D.

PY - 2025/1/1

Y1 - 2025/1/1

N2 - A combination of searches for the single production of vectorlike top quarks ((Formula presented)) is presented. These analyses are based on proton-proton collisions at (Formula presented) recorded in 2015-2018 with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of (Formula presented). The (Formula presented) decay modes considered in this combination are into a top quark and either a Standard Model Higgs boson or a (Formula presented) boson ((Formula presented) and (Formula presented)). The individual searches used in the combination are differentiated by the number of leptons ((Formula presented), (Formula presented)) in the final state. The observed data are found to be in good agreement with the Standard Model background prediction. Interpretations are provided for a range of masses and couplings of the vectorlike top quark for benchmark models and generalized representations in terms of 95% confidence level limits. For a benchmark signal prediction of a vectorlike top quark SU(2) singlet with electroweak coupling, (Formula presented), of 0.5, masses below 2.1 TeV are excluded, resulting in the most restrictive limits to date.

AB - A combination of searches for the single production of vectorlike top quarks ((Formula presented)) is presented. These analyses are based on proton-proton collisions at (Formula presented) recorded in 2015-2018 with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of (Formula presented). The (Formula presented) decay modes considered in this combination are into a top quark and either a Standard Model Higgs boson or a (Formula presented) boson ((Formula presented) and (Formula presented)). The individual searches used in the combination are differentiated by the number of leptons ((Formula presented), (Formula presented)) in the final state. The observed data are found to be in good agreement with the Standard Model background prediction. Interpretations are provided for a range of masses and couplings of the vectorlike top quark for benchmark models and generalized representations in terms of 95% confidence level limits. For a benchmark signal prediction of a vectorlike top quark SU(2) singlet with electroweak coupling, (Formula presented), of 0.5, masses below 2.1 TeV are excluded, resulting in the most restrictive limits to date.

UR - https://www.scopus.com/pages/publications/85217853125

U2 - 10.1103/PhysRevD.111.012012

DO - 10.1103/PhysRevD.111.012012

M3 - Article

AN - SCOPUS:85217853125

SN - 2470-0010

VL - 111

JO - Physical Review D

JF - Physical Review D

IS - 1

M1 - 012012

ER -

Combination of searches for singly produced vectorlike top quarks in (Formula presented) collisions at (Formula presented) with the ATLAS detector

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