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|a 10.1103/PhysRevD.105.052003
|2 doi
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|a koha001002442
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|b rus
|c RU-ToGU
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|a Measurement of W±γ differential cross sections in proton-proton collisions at √s=13 TeV and effective field theory constraints
|c A. Tumasyan, W. Adam, J. W. Andrejkovic [et al.]
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|a Текст
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|a электронный
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|a Библиогр.: 84 назв.
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|a Differential cross section measurements of W(+/-)y production in proton-proton collisions at root 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 WW gamma vertex are determined within an effective field theory framework, focusing on the O-3w 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 O-3w contribution than using the transverse momentum alone.
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|a протон-протонные столкновения
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|a Стандартная модель
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|a фотоны
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|a мюоны
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|a статьи в журналах
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|a Tumasyan, Armen
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|a Adam, Wolfgang
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|a Andrejkovic, Janik Walter
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|a Borshch, Vladislav
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|a Ivanchenko, Vladimir
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|a Tcherniaev, Evgueni
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|t Physical Review D
|d 2022
|g Vol. 105, № 5. P. 052003-1-052003-34
|x 2470-0010
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|a RU-ToGU
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|u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002442
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|a статья
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|c 1002442
|d 1002442
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