Search for non-resonant production of semi-visible jets using Run~2 data in ATLAS

ATLAS Collaboration; Paul Newman

doi:10.1016/j.physletb.2023.138324

Search for non-resonant production of semi-visible jets using Run~2 data in ATLAS

ATLAS Collaboration, Paul Newman

Physics and Astronomy

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

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Abstract

Semi-visible jets, with a significant contribution to the event's missing transverse momentum, can arise in strongly interacting dark sectors. This results in an event topology where one of the jets can be aligned with the direction of the missing transverse momentum. A search for semi-visible jets produced via a t-channel mediator exchange is presented. The analysis uses pp collisions with an integrated luminosity of 139 fb−1 and a centre-of-mass energy of 13 TeV, collected with the ATLAS detector during Run 2 of the LHC. No excess over Standard Model predictions is observed. Assuming a coupling strength of unity between the mediator, a Standard Model quark and a dark quark, mediator masses up to 2.7 TeV can be excluded at the 95% confidence level. Upper limits on the coupling strength are also derived.

Original language	English
Article number	138324
Number of pages	36
Journal	Physics Letters B
Early online date	11 Nov 2023
DOIs	https://doi.org/10.1016/j.physletb.2023.138324
Publication status	E-pub ahead of print - 11 Nov 2023

Bibliographical note

34 pages in total, author list starting page 18, 6 figures, 2 tables, submitted to PLB. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2022-37/

Keywords

hep-ex

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Cite this

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title = "Search for non-resonant production of semi-visible jets using Run~2 data in ATLAS",

abstract = " Semi-visible jets, with a significant contribution to the event's missing transverse momentum, can arise in strongly interacting dark sectors. This results in an event topology where one of the jets can be aligned with the direction of the missing transverse momentum. A search for semi-visible jets produced via a t-channel mediator exchange is presented. The analysis uses pp collisions with an integrated luminosity of 139 fb−1 and a centre-of-mass energy of 13 TeV, collected with the ATLAS detector during Run 2 of the LHC. No excess over Standard Model predictions is observed. Assuming a coupling strength of unity between the mediator, a Standard Model quark and a dark quark, mediator masses up to 2.7 TeV can be excluded at the 95% confidence level. Upper limits on the coupling strength are also derived.",

keywords = "hep-ex",

author = "{ATLAS Collaboration} and Paul Newman",

note = "34 pages in total, author list starting page 18, 6 figures, 2 tables, submitted to PLB. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2022-37/",

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language = "English",

journal = "Physics Letters B",

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T1 - Search for non-resonant production of semi-visible jets using Run~2 data in ATLAS

AU - ATLAS Collaboration

AU - Newman, Paul

N1 - 34 pages in total, author list starting page 18, 6 figures, 2 tables, submitted to PLB. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2022-37/

PY - 2023/11/11

Y1 - 2023/11/11

N2 - Semi-visible jets, with a significant contribution to the event's missing transverse momentum, can arise in strongly interacting dark sectors. This results in an event topology where one of the jets can be aligned with the direction of the missing transverse momentum. A search for semi-visible jets produced via a t-channel mediator exchange is presented. The analysis uses pp collisions with an integrated luminosity of 139 fb−1 and a centre-of-mass energy of 13 TeV, collected with the ATLAS detector during Run 2 of the LHC. No excess over Standard Model predictions is observed. Assuming a coupling strength of unity between the mediator, a Standard Model quark and a dark quark, mediator masses up to 2.7 TeV can be excluded at the 95% confidence level. Upper limits on the coupling strength are also derived.

AB - Semi-visible jets, with a significant contribution to the event's missing transverse momentum, can arise in strongly interacting dark sectors. This results in an event topology where one of the jets can be aligned with the direction of the missing transverse momentum. A search for semi-visible jets produced via a t-channel mediator exchange is presented. The analysis uses pp collisions with an integrated luminosity of 139 fb−1 and a centre-of-mass energy of 13 TeV, collected with the ATLAS detector during Run 2 of the LHC. No excess over Standard Model predictions is observed. Assuming a coupling strength of unity between the mediator, a Standard Model quark and a dark quark, mediator masses up to 2.7 TeV can be excluded at the 95% confidence level. Upper limits on the coupling strength are also derived.

KW - hep-ex

U2 - 10.1016/j.physletb.2023.138324

DO - 10.1016/j.physletb.2023.138324

M3 - Letter

SN - 0370-2693

JO - Physics Letters B

JF - Physics Letters B

M1 - 138324

ER -

Search for non-resonant production of semi-visible jets using Run~2 data in ATLAS

Abstract

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Keywords

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