Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions

ATLAS Collaboration; Usha Mallik; Diksha Garg

doi:10.1007/JHEP08(2024)223

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Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions

Journal article

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Peer reviewed

Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions

ATLAS Collaboration, Usha Mallik and Diksha Garg

Journal of high energy physics : JHEP, Vol.2024, 223

2024

DOI: 10.1007/JHEP08(2024)223

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https://doi.org/10.1007/JHEP08(2024)223View

Published (Version of record) Open Access

Abstract

Measurements of inclusive, differential cross-sections for the production of events with missing transverse momentum in association with jets in proton-proton collisions at √s = 13 TeV are presented. The measurements are made with the ATLAS detector using an integrated luminosity of 140 fb−1 and include measurements of dijet distributions in a region in which vector-boson fusion processes are enhanced. They are unfolded to correct for detector resolution and efficiency within the fiducial acceptance, and are designed to allow robust comparisons with a wide range of theoretical predictions. A measurement of differential cross sections for the Z → νν process is made. The measurements are generally well-described by Standard Model predictions except for the dijet invariant mass distribution. Auxiliary measurements of the hadronic system recoiling against isolated leptons, and photons, are also made in the same phase space. Ratios between the measured distributions are then derived, to take advantage of cancellations in modelling effects and some of the major systematic uncertainties. These measurements are sensitive to new phenomena, and provide a mechanism to easily set constraints on phenomenological models. To illustrate the robustness of the approach, these ratios are compared with two common Dark Matter models, where the constraints derived from the measurement are comparable to those set by dedicated detector-level searches.

acceptance

CERN LHC Coll

dark matter

detector: resolution

differential cross section: measured

dijet: mass spectrum

efficiency

experimental results

GeV-cms

Hadron-Hadron Scattering

jet: associated production

Jets

lepton

neutrino: pair production

p p: colliding beams

p p: scattering

phase space

photon

transverse momentum: missing-energy

Vector Boson Production

vector boson: fusion

Z0: leptonic decay

Details

Title: Subtitle: Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions
Creators: ATLAS Collaboration
Usha Mallik (Contributor) - University of Iowa, Physics and Astronomy
Diksha Garg (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Journal of high energy physics : JHEP, Vol.2024, 223
DOI: 10.1007/JHEP08(2024)223
ISSN: 1126-6708
eISSN: 1029-8479
Publisher: Springer
Language: English
Date published: 2024
Academic Unit: Physics and Astronomy
Record Identifier: 9984736736202771

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