Measurement of vector boson production cross sections and their ratios using 𝑝𝑝 collisions at βˆšπ‘  = 13.6 TeV with the ATLAS detectorr

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, T. Qiu, N. Themistokleous, B.M. WynneZ. Xu, E. Zaid

Research output: Contribution to journal β€Ί Letter β€Ί peer-review

Abstract

Fiducial and total π‘Š Β± and 𝑍 boson cross sections, their ratios and the ratio of top-antitop-quark pair and π‘Š -boson fiducial cross sections are measured in proton–proton collisions at a centre-of-mass energy of βˆšπ‘  = 13.6 TeV, corresponding to an integrated luminosity of 29 fbβˆ’1 of data collected in 2022 by the ATLAS experiment
at the Large Hadron Collider. The measured fiducial cross-section values for π‘Š + β†’ 𝓁+𝜈, π‘Š βˆ’ β†’ π“βˆ’Μ„ 𝜈, and 𝑍 →𝓁+π“βˆ’ (𝓁 = 𝑒 or πœ‡) boson productions are 4250 Β± 150 pb, 3310 Β± 120 pb, and 744 Β± 20 pb, respectively, where the uncertainty is the total uncertainty, including that arising from the luminosity of about 2.2%. The measurements
are in agreement with Standard-Model predictions calculated at next-to-next-to-leading-order in 𝛼𝑠 , next-to-next-to-leading logarithmic accuracy and next-to-leading-order electroweak accuracy.
Original languageEnglish
Article number138725
Pages (from-to)1-27
Number of pages27
JournalPhysics Letters B
Volume854
Early online date17 May 2024
DOIs
Publication statusPublished - 1 Jul 2024

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