Measurement of W±γ differential cross sections in proton-proton collisions at s =13 TeV and effective field theory constraints

CMS Collaboration; Freya Blekman; Emil Sørensen Bols; Jarne Theo De Clercq; Jorgen D'Hondt; Martin Delcourt; Hesham El Faham; Steven Lowette; Seth Moortgat; Alexander Morton; Denise Müller; Abanti Ranadhir Sahasransu; Stefaan Tavernier; Walter Van Doninck; Petra Van Mulders

doi:10.1103/PhysRevD.105.052003

Measurement of W±γ differential cross sections in proton-proton collisions at s =13 TeV and effective field theory constraints

CMS Collaboration, Freya Blekman, Emil Sørensen Bols, Jarne Theo De Clercq, Jorgen D'Hondt, Martin Delcourt, Hesham El Faham, Steven Lowette, Seth Moortgat, Alexander Morton, Denise Müller, Abanti Ranadhir Sahasransu, Stefaan Tavernier, Walter Van Doninck, Petra Van Mulders

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Abstract

Differential cross section measurements of W±γ production in proton-proton collisions at s=13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016-2018 with an integrated luminosity of 138 fb-1. Candidate events containing an electron or muon, a photon, and missing transverse momentum are selected. The measurements are compared with standard model predictions computed at next-to-leading and next-to-next-to-leading orders in perturbative quantum chromodynamics. Constraints on the presence of TeV-scale new physics affecting the WWγ vertex are determined within an effective field theory framework, focusing on the O3W operator. A simultaneous measurement of the photon transverse momentum and the azimuthal angle of the charged lepton in a special reference frame is performed. This two-dimensional approach provides up to a factor of ten more sensitivity to the interference between the standard model and the O3W contribution than using the transverse momentum alone.

Original language	English
Article number	052003
Number of pages	34
Journal	Phys. Rev. D
Volume	105
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.105.052003
Publication status	Published - 9 Mar 2022

Bibliographical note

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-20-005 (CMS Public Pages)

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hep-ex

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10.1103/PhysRevD.105.052003Licence: CC BY

2111.13948v2Submitted manuscript, 2.56 MBLicence: CC BY
Measurement of WFinal published version, 1.43 MBLicence: CC BY

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Collaboration, CMS., Blekman, F., Bols, E. S., De Clercq, J. T., D'Hondt, J., Delcourt, M., El Faham, H., Lowette, S., Moortgat, S., Morton, A., Müller, D., Sahasransu, A. R., Tavernier, S., Van Doninck, W., & Van Mulders, P. (2022). Measurement of W±γ differential cross sections in proton-proton collisions at s =13 TeV and effective field theory constraints. Phys. Rev. D, 105(5), Article 052003. https://doi.org/10.1103/PhysRevD.105.052003

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abstract = "Differential cross section measurements of W±γ production in proton-proton collisions at s=13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016-2018 with an integrated luminosity of 138 fb-1. Candidate events containing an electron or muon, a photon, and missing transverse momentum are selected. The measurements are compared with standard model predictions computed at next-to-leading and next-to-next-to-leading orders in perturbative quantum chromodynamics. Constraints on the presence of TeV-scale new physics affecting the WWγ vertex are determined within an effective field theory framework, focusing on the O3W operator. A simultaneous measurement of the photon transverse momentum and the azimuthal angle of the charged lepton in a special reference frame is performed. This two-dimensional approach provides up to a factor of ten more sensitivity to the interference between the standard model and the O3W contribution than using the transverse momentum alone.",

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author = "CMS Collaboration and Freya Blekman and Bols, {Emil S{\o}rensen} and {De Clercq}, {Jarne Theo} and Jorgen D'Hondt and Martin Delcourt and {El Faham}, Hesham and Steven Lowette and Seth Moortgat and Alexander Morton and Denise M{\"u}ller and Sahasransu, {Abanti Ranadhir} and Stefaan Tavernier and {Van Doninck}, Walter and {Van Mulders}, Petra",

note = "Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-20-005 (CMS Public Pages)",

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Collaboration, CMS, Blekman, F, Bols, ES, De Clercq, JT, D'Hondt, J , Delcourt, M, El Faham, H, Lowette, S, Moortgat, S, Morton, A, Müller, D, Sahasransu, AR, Tavernier, S, Van Doninck, W & Van Mulders, P 2022, 'Measurement of W±γ differential cross sections in proton-proton collisions at s =13 TeV and effective field theory constraints', Phys. Rev. D, vol. 105, no. 5, 052003. https://doi.org/10.1103/PhysRevD.105.052003

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AU - Collaboration, CMS

AU - Blekman, Freya

AU - Bols, Emil Sørensen

AU - De Clercq, Jarne Theo

AU - D'Hondt, Jorgen

AU - Delcourt, Martin

AU - El Faham, Hesham

AU - Lowette, Steven

AU - Moortgat, Seth

AU - Morton, Alexander

AU - Müller, Denise

AU - Sahasransu, Abanti Ranadhir

AU - Tavernier, Stefaan

AU - Van Doninck, Walter

AU - Van Mulders, Petra

N1 - Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-20-005 (CMS Public Pages)

PY - 2022/3/9

Y1 - 2022/3/9

N2 - Differential cross section measurements of W±γ production in proton-proton collisions at s=13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016-2018 with an integrated luminosity of 138 fb-1. Candidate events containing an electron or muon, a photon, and missing transverse momentum are selected. The measurements are compared with standard model predictions computed at next-to-leading and next-to-next-to-leading orders in perturbative quantum chromodynamics. Constraints on the presence of TeV-scale new physics affecting the WWγ vertex are determined within an effective field theory framework, focusing on the O3W operator. A simultaneous measurement of the photon transverse momentum and the azimuthal angle of the charged lepton in a special reference frame is performed. This two-dimensional approach provides up to a factor of ten more sensitivity to the interference between the standard model and the O3W contribution than using the transverse momentum alone.

AB - Differential cross section measurements of W±γ production in proton-proton collisions at s=13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016-2018 with an integrated luminosity of 138 fb-1. Candidate events containing an electron or muon, a photon, and missing transverse momentum are selected. The measurements are compared with standard model predictions computed at next-to-leading and next-to-next-to-leading orders in perturbative quantum chromodynamics. Constraints on the presence of TeV-scale new physics affecting the WWγ vertex are determined within an effective field theory framework, focusing on the O3W operator. A simultaneous measurement of the photon transverse momentum and the azimuthal angle of the charged lepton in a special reference frame is performed. This two-dimensional approach provides up to a factor of ten more sensitivity to the interference between the standard model and the O3W contribution than using the transverse momentum alone.

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JF - Phys. Rev. D

IS - 5

M1 - 052003

ER -

Measurement of W±γ differential cross sections in proton-proton collisions at s =13 TeV and effective field theory constraints

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SRP8: Strategic Research Programme: High-Energy Physics at the VUB

Measurement of W$^\pm\gamma$ differential cross sections in proton-proton collisions at $\sqrt{s}$ = 13 TeV and effective field theory constraints

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Measurement of W±γ differential cross sections in proton-proton collisions at s =13 TeV and effective field theory constraints

Abstract

Bibliographical note

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Access to Document

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SRP8: Strategic Research Programme: High-Energy Physics at the VUB

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Measurement of W$^\pm\gamma$ differential cross sections in proton-proton collisions at $\sqrt{s}$ = 13 TeV and effective field theory constraints

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