Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13~TeV pp collisions with the ATLAS detector

ATLAS Collaboration; S. Alderweireldt; J.F. Allen; T.M. Carter; P. J.  Clark; J.R. Curran; D. Duda; S. M. Farrington; Y. Gao; J.M. Gargan; R.Y. Gonzalez Andana; C. Jiang; C. Leonidopoulos; M. Firdaus M. Soberi; V. J.  Martin; L. Mijović; V.A. Parrish; E.A. Pender; T. Qiu; J.M. Silva; N. Themistokleous; E.M. Villhauer; B.M. Wynne; Z. Xu; E. Zaid

doi:10.1103/PhysRevD.110.052009

Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13~TeV pp collisions with the ATLAS detector

ATLAS Collaboration, S. Alderweireldt, J.F. Allen, T.M. Carter, P. J. Clark, J.R. Curran, D. Duda, S. M. Farrington, Y. Gao, J.M. Gargan, R.Y. Gonzalez Andana, C. Jiang, C. Leonidopoulos, M. Firdaus M. Soberi, V. J. Martin, L. Mijović, V.A. Parrish, E.A. Pender, T. Qiu, J.M. SilvaN. Themistokleous, E.M. Villhauer, B.M. Wynne, Z. Xu, E. Zaid

School of Physics and Astronomy

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

Abstract

A search is presented for the pair production of heavy vectorlike quarks (VLQs) that each decay into a 𝑊 boson and a light quark. This study focuses on events where one 𝑊 boson decays into leptons and the other into hadrons. The search analyzed 140 fb−1 of 𝑝⁢𝑝 collision data with √𝑠 =13 TeV, recorded by the ATLAS detector from 2015 to 2018 during run 2 of the Large Hadron Collider. The final state is characterized by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, multiple small-radius jets, and a single large-radius jet identified as originating from the hadronic decay of a boosted 𝑊 boson. With higher center-of-mass energy and integrated luminosity than in the run 1 search, and improved analysis tools, this analysis excludes VLQs (𝑄) with masses below 1530 GeV at 95% confidence level for the branching ratio ℬ⁡(𝑄 →𝑊⁢𝑞) =1, an improvement of 840 GeV on the previous ATLAS limit.

Original language	English
Article number	052009
Pages (from-to)	1-27
Number of pages	27
Journal	Physical Review D
Volume	110
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.110.052009
Publication status	Published - 24 Sept 2024

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3 Finished
3 Active

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/27
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/10/22 → 31/03/26
Project: Research

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ATLAS Collaboration, Alderweireldt, S., Allen, J. F., Carter, T. M., Clark, P. J., Curran, J. R., Duda, D., Farrington, S. M., Gao, Y., Gargan, J. M., Gonzalez Andana, R. Y., Jiang, C., Leonidopoulos, C., Soberi, M. F. M., Martin, V. J., Mijović, L., Parrish, V. A., Pender, E. A., Qiu, T., ... Zaid, E. (2024). Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13~TeV pp collisions with the ATLAS detector. Physical Review D, 110(5), 1-27. Article 052009. https://doi.org/10.1103/PhysRevD.110.052009

@article{57d6ee4e17b5484eac663be8d63fefe5,

title = "Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13~TeV pp collisions with the ATLAS detector",

abstract = "A search is presented for the pair production of heavy vectorlike quarks (VLQs) that each decay into a 𝑊 boson and a light quark. This study focuses on events where one 𝑊 boson decays into leptons and the other into hadrons. The search analyzed 140 fb−1 of 𝑝⁢𝑝 collision data with √𝑠 =13 TeV, recorded by the ATLAS detector from 2015 to 2018 during run 2 of the Large Hadron Collider. The final state is characterized by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, multiple small-radius jets, and a single large-radius jet identified as originating from the hadronic decay of a boosted 𝑊 boson. With higher center-of-mass energy and integrated luminosity than in the run 1 search, and improved analysis tools, this analysis excludes VLQs (𝑄) with masses below 1530 GeV at 95% confidence level for the branching ratio ℬ⁡(𝑄 →𝑊⁢𝑞) =1, an improvement of 840 GeV on the previous ATLAS limit.",

author = "{ATLAS Collaboration} and S. Alderweireldt and J.F. Allen and T.M. Carter and Clark, {P. J.} and J.R. Curran and D. Duda and Farrington, {S. M.} and Y. Gao and J.M. Gargan and {Gonzalez Andana}, R.Y. and C. Jiang and C. Leonidopoulos and Soberi, {M. Firdaus M.} and Martin, {V. J.} and L. Mijovi{\'c} and V.A. Parrish and E.A. Pender and T. Qiu and J.M. Silva and N. Themistokleous and E.M. Villhauer and B.M. Wynne and Z. Xu and E. Zaid",

year = "2024",

month = sep,

day = "24",

doi = "10.1103/PhysRevD.110.052009",

language = "English",

volume = "110",

pages = "1--27",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

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ATLAS Collaboration, Alderweireldt, S, Allen, JF, Carter, TM, Clark, PJ, Curran, JR, Duda, D , Farrington, SM , Gao, Y, Gargan, JM, Gonzalez Andana, RY, Jiang, C, Leonidopoulos, C, Soberi, MFM, Martin, VJ , Mijović, L, Parrish, VA, Pender, EA, Qiu, T , Silva, JM, Themistokleous, N, Villhauer, EM, Wynne, BM , Xu, Z & Zaid, E 2024, 'Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13~TeV pp collisions with the ATLAS detector', Physical Review D, vol. 110, no. 5, 052009, pp. 1-27. https://doi.org/10.1103/PhysRevD.110.052009

TY - JOUR

T1 - Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13~TeV pp collisions with the ATLAS detector

AU - ATLAS Collaboration

AU - Alderweireldt, S.

AU - Allen, J.F.

AU - Carter, T.M.

AU - Clark, P. J.

AU - Curran, J.R.

AU - Duda, D.

AU - Farrington, S. M.

AU - Gao, Y.

AU - Gargan, J.M.

AU - Gonzalez Andana, R.Y.

AU - Jiang, C.

AU - Leonidopoulos, C.

AU - Soberi, M. Firdaus M.

AU - Martin, V. J.

AU - Mijović, L.

AU - Parrish, V.A.

AU - Pender, E.A.

AU - Qiu, T.

AU - Silva, J.M.

AU - Themistokleous, N.

AU - Villhauer, E.M.

AU - Wynne, B.M.

AU - Xu, Z.

AU - Zaid, E.

PY - 2024/9/24

Y1 - 2024/9/24

N2 - A search is presented for the pair production of heavy vectorlike quarks (VLQs) that each decay into a 𝑊 boson and a light quark. This study focuses on events where one 𝑊 boson decays into leptons and the other into hadrons. The search analyzed 140 fb−1 of 𝑝⁢𝑝 collision data with √𝑠 =13 TeV, recorded by the ATLAS detector from 2015 to 2018 during run 2 of the Large Hadron Collider. The final state is characterized by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, multiple small-radius jets, and a single large-radius jet identified as originating from the hadronic decay of a boosted 𝑊 boson. With higher center-of-mass energy and integrated luminosity than in the run 1 search, and improved analysis tools, this analysis excludes VLQs (𝑄) with masses below 1530 GeV at 95% confidence level for the branching ratio ℬ⁡(𝑄 →𝑊⁢𝑞) =1, an improvement of 840 GeV on the previous ATLAS limit.

AB - A search is presented for the pair production of heavy vectorlike quarks (VLQs) that each decay into a 𝑊 boson and a light quark. This study focuses on events where one 𝑊 boson decays into leptons and the other into hadrons. The search analyzed 140 fb−1 of 𝑝⁢𝑝 collision data with √𝑠 =13 TeV, recorded by the ATLAS detector from 2015 to 2018 during run 2 of the Large Hadron Collider. The final state is characterized by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, multiple small-radius jets, and a single large-radius jet identified as originating from the hadronic decay of a boosted 𝑊 boson. With higher center-of-mass energy and integrated luminosity than in the run 1 search, and improved analysis tools, this analysis excludes VLQs (𝑄) with masses below 1530 GeV at 95% confidence level for the branching ratio ℬ⁡(𝑄 →𝑊⁢𝑞) =1, an improvement of 840 GeV on the previous ATLAS limit.

U2 - 10.1103/PhysRevD.110.052009

DO - 10.1103/PhysRevD.110.052009

M3 - Article

SN - 2470-0010

VL - 110

SP - 1

EP - 27

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052009

ER -

Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13~TeV pp collisions with the ATLAS detector

Abstract

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Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

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