Measurements of W+W− production cross-sections in pp collisions at √s = 13 TeV with the ATLAS detector
Measurements of W+W− → e±νμ∓ν production cross-sections are presented, providing a test of the predictions of perturbative quantum chromodynamics and the electroweak theory. The measurements are based on data from pp collisions at $$ \sqrt{s} $$= 13 TeV recorded by the ATLAS detector at the Large Ha...
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| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
19 August 2025
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| In: |
Journal of high energy physics
Year: 2025, Issue: 8, Pages: 1-66 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2025)142 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP08(2025)142
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| Author Notes: | The ATLAS collaboration* |
MARC
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| 245 | 1 | 0 | |a Measurements of W+W− production cross-sections in pp collisions at √s = 13 TeV with the ATLAS detector |c The ATLAS collaboration* |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Measurements of W + W − production cross-sections in proton-proton collisions at square root s = 13 TeV with the ATLAS detector |
| 264 | 1 | |c 19 August 2025 | |
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| 500 | |a Veröffentlicht: 19. August 2025 | ||
| 500 | |a *The ATLAS collaboration: G. Aad, L.M. Baltes, F. Bartels, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, D.F. Rassloff, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, L. Vigani, M. Wessels, J. Zinsser [und sehr viele weitere Personen] | ||
| 500 | |a Im Titel steht der Buchstabe "s" unter dem Wurzelsymbol | ||
| 500 | |a Im Titel sind das Plus- und das Minuszeichen hochgestellt | ||
| 500 | |a Gesehen am 23.02.2026 | ||
| 520 | |a Measurements of W+W− → e±νμ∓ν production cross-sections are presented, providing a test of the predictions of perturbative quantum chromodynamics and the electroweak theory. The measurements are based on data from pp collisions at $$ \sqrt{s} $$= 13 TeV recorded by the ATLAS detector at the Large Hadron Collider in 2015-2018, corresponding to an integrated luminosity of 140 fb−1. The number of events due to top-quark pair production, the largest background, is reduced by rejecting events containing jets with b-hadron decays. An improved methodology for estimating the remaining top-quark background enables a precise measurement of W+W− cross-sections with no additional requirements on jets. The fiducial W+W− cross-section is determined in a maximum-likelihood fit with an uncertainty of 3.1%. The measurement is extrapolated to the full phase space, resulting in a total W+W− cross-section of 127 ± 4 pb. Differential cross-sections are measured as a function of twelve observables that comprehensively describe the kinematics of W+W− events. The measurements are compared with state-of-the-art theory calculations and excellent agreement with predictions is observed. A charge asymmetry in the lepton rapidity is observed as a function of the dilepton invariant mass, in agreement with the Standard Model expectation. A CP-odd observable is measured to be consistent with no CP violation. Limits on Standard Model effective field theory Wilson coefficients in the Warsaw basis are obtained from the differential cross-sections. | ||
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