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dc.contributor.authorGreljo, Admir
dc.contributor.authorIranipour, Shayan
dc.contributor.authorKassabov, Zahari
dc.contributor.authorMadigan, Maeve
dc.contributor.authorMoore, James
dc.contributor.authorRojo, Juan
dc.contributor.authorUbiali, Maria
dc.contributor.authorVoisey, Cameron
dc.date.accessioned2021-10-24T16:02:26Z
dc.date.available2021-10-24T16:02:26Z
dc.date.issued2021-07-19
dc.date.submitted2021-04-26
dc.identifier.otherjhep07(2021)122
dc.identifier.other16279
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/329832
dc.description.abstractAbstract: The high-energy tails of charged- and neutral-current Drell-Yan processes provide important constraints on the light quark and anti-quark parton distribution functions (PDFs) in the large-x region. At the same time, short-distance new physics effects such as those encoded by the Standard Model Effective Field Theory (SMEFT) would induce smooth distortions to the same high-energy Drell-Yan tails. In this work, we assess for the first time the interplay between PDFs and EFT effects for high-mass Drell-Yan processes at the LHC and quantify the impact that the consistent joint determination of PDFs and Wilson coefficients has on the bounds derived for the latter. We consider two well-motivated new physics scenarios: 1) electroweak oblique corrections (Ŵ, Ŷ) and 2) four-fermion interactions potentially related to the LHCb anomalies in R(K(*)). We account for available Drell-Yan data, both from unfolded cross sections and from searches, and carry out dedicated projections for the High-Luminosity LHC. Our main finding is that, while the interplay between PDFs and EFT effects remains moderate for the current dataset, it will become a significant challenge for EFT analyses at the HL-LHC.
dc.languageen
dc.publisherSpringer Berlin Heidelberg
dc.subjectRegular Article - Theoretical Physics
dc.subjectPhenomenological Models
dc.subjectQCD Phenomenology
dc.titleParton distributions in the SMEFT from high-energy Drell-Yan tails
dc.typeArticle
dc.date.updated2021-10-24T16:02:25Z
prism.issueIdentifier7
prism.publicationNameJournal of High Energy Physics
prism.volume2021
dc.identifier.doi10.17863/CAM.77277
dcterms.dateAccepted2021-06-29
rioxxterms.versionofrecord10.1007/jhep07(2021)122
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.identifier.eissn1029-8479
dc.identifier.arxiv2104.02723


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