{"title":"Polarized $W^+W^-$ pairs at the LHC: Effects from bottom-quark induced processes at NLO QCD+EW","authors":"Thi Nhung Dao, Duc Ninh Le","doi":"arxiv-2409.06396","DOIUrl":null,"url":null,"abstract":"We investigate the effects of the bottom-quark induced processes on the\ndoubly polarized cross sections of $W^+W^-$ pair production at the LHC. The\nmethod to extract the on-shell single-top contribution is provided. Results for\nphenomenological and experimental analyses are given at next-to-leading order\n(NLO) QCD+EW accuracy, with the leading contribution from the gluon-gluon and\nphoton-photon fusion included. We found that the contribution of the\nbottom-quark induced processes, after the subtraction of the on-shell $tW$\nchannel, is largest for the doubly longitudinal polarization, being at the\nlevel of $9\\%$ and $13\\%$ (compared to the NLO value of the light-quark\ncontribution, for integrated cross section) for two cut setups, with and\nwithout a jet veto, respectively. A bound of the $tW$ interference is\ncalculated for various kinematic distributions, showing that this interference\neffect is, in general, smaller for the no jet veto case.","PeriodicalId":501067,"journal":{"name":"arXiv - PHYS - High Energy Physics - Phenomenology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - High Energy Physics - Phenomenology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.06396","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We investigate the effects of the bottom-quark induced processes on the
doubly polarized cross sections of $W^+W^-$ pair production at the LHC. The
method to extract the on-shell single-top contribution is provided. Results for
phenomenological and experimental analyses are given at next-to-leading order
(NLO) QCD+EW accuracy, with the leading contribution from the gluon-gluon and
photon-photon fusion included. We found that the contribution of the
bottom-quark induced processes, after the subtraction of the on-shell $tW$
channel, is largest for the doubly longitudinal polarization, being at the
level of $9\%$ and $13\%$ (compared to the NLO value of the light-quark
contribution, for integrated cross section) for two cut setups, with and
without a jet veto, respectively. A bound of the $tW$ interference is
calculated for various kinematic distributions, showing that this interference
effect is, in general, smaller for the no jet veto case.
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