Accurate prediction of the Drell-Yan ??* distribution in wide dilepton mass and rapidity ranges in pp collisions through NNLO+N3LL

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dc.contributor.authorOcalan, Kadir
dc.date.accessioned2024-02-23T14:20:46Z
dc.date.available2024-02-23T14:20:46Z
dc.date.issued2021
dc.departmentNEÜen_US
dc.description.abstractThis paper presents high-accuracy predictions for the differential cross ss as a function of the key observable phi(eta)* of the neutral-current Drell-Yan (DY) dilepton production in proton-proton (pp) collisions. The differential distributions for the phi(eta)* are presented by using the state-of-the-art predictions from the combined calculations of fixed-order perturbative quantum chromodynamics (QCD) corrections at next-to-next-to-leading order (NNLO) accuracy and resummation of large logarithmic terms at next-to-next-to-leading logarithmic (NNLL) and next-to-NNLL ((NLL)-L-3) accuracies, i.e., NNLO+NNLL and NNLO+(NLL)-L-3, respectively. The predicted distributions are reported for a thorough set of the DY dilepton invariant mass m(ll )ranges, spanning a wide kinematic region of 50 < m(ll ) < 1000 GeV both near and away from the Z-boson mass peak, and rapidity y(ll) ranges in the central detector acceptance region of vertical bar y(ll)vertical bar < 2.4. The differential phi(eta)* distributions in the wide m(ll) and y(ll) ranges offer stringent tests to assess the reliability of the predictions, where the m(ll )and y(ll) are closely correlated with the parton distribution functions (PDFs) of the incoming partons. The matched predictions through NNLO+(NLL)-L-3 are observed to provide good description of the 13 TeV pp collision data for the phi(eta)* (including the dilepton transverse momentum p(T)(ll) as well) distributions in almost the entire m(ll) and y(ll) ranges, apart from the intermediate- to high-phi(eta)* region in the lowest mass range 50-76 GeV which is assessed to constitute a challenge for the presented predictions. The predictions at NNLO+(NLL)-L-3 are also reported at 14 TeV for the upcoming high-luminosity running era of the Large Hadron Collider (LHC), in which increasing amount of data is expected to require more accurate and precise theoretical description. The most recent PDF models MSHT20 and CT18, in addition to the NNPDF3.1, are tested for the first time for the matched predictions of the phi(eta)* distribution. The differential distributions by the combined predictions through NNLO QCD+NLO EW are finally provided to enable assessment of the impact of the EW corrections for the phi(eta)*.en_US
dc.identifier.doi10.1088/1402-4896/ac3e19
dc.identifier.issn0031-8949
dc.identifier.issn1402-4896
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-85122976662en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1088/1402-4896/ac3e19
dc.identifier.urihttps://hdl.handle.net/20.500.12452/13307
dc.identifier.volume96en_US
dc.identifier.wosWOS:000728370400001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofPhysica Scriptaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHigh Energy Physics Phenomenologyen_US
dc.subjectNnlo Qcd Calculationsen_US
dc.subjectN3ll Resummationen_US
dc.subjectDrell-Yan Phi(Eta)* Observableen_US
dc.subjectDrell-Yan Dilepton Mass And Rapidityen_US
dc.titleAccurate prediction of the Drell-Yan ??* distribution in wide dilepton mass and rapidity ranges in pp collisions through NNLO+N3LLen_US
dc.typeArticleen_US

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