Observation of nuclear modifications in W-+/- boson production in pPb collisions at root s(NN)=8.16 TeV

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dc.WoS.categoriesAstronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fieldsen_US
dc.authorid0000-0002-9007-8260en_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-12-17T07:22:09Z
dc.date.available2020-12-17T07:22:09Z
dc.date.issued2020-01-10
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description24 pagesen_US
dc.description.abstractThe production of W-+/- bosons is studied in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of root s(NN) = 8.16 TeV. Measurements are performed in the W-+/- -> mu(+/-)nu(mu) channel using a data sample corresponding to an integrated luminosity of 173.4 +/- 6.1 nb(-1), collected by the CMS Collaboration at the LHC. The number of positively and negatively charged W bosons is determined separately in the muon pseudorapidity region in the laboratory frame vertical bar eta(mu)(lab)vertical bar < 2.4 and transverse momentum p(T)(mu) > 25 GeV/c. The W-+/- boson differential cross sections, muon charge asymmetry, and the ratios of W-+/- boson yields for the proton-going over the Pb-going beam directions are reported as a function of the muon pseudorapidity in the nucleon-nucleon centre-of-mass frame. The measurements are compared to the predictions from theoretical calculations based on parton distribution functions (PDFs) at next-to-leading-order. The results favour PDF calculations that include nuclear modifications and provide constraints on the nuclear PDF global fits. (C) 2019 The Author(s). Published by Elsevier B.V.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1016/j.physletb.2019.135048en_US
dc.identifier.issn1873-2445
dc.identifier.issn0370-2693
dc.identifier.urihttps://hdl.handle.net/11411/2885
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2019.135048
dc.identifier.wosWOS:000503832500038en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors1000+en_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysics Letters Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCMSen_US
dc.subjectHeavy ionsen_US
dc.subjectElectroweaken_US
dc.subjectW bosonen_US
dc.subjectpPben_US
dc.subjectnPDFen_US
dc.titleObservation of nuclear modifications in W-+/- boson production in pPb collisions at root s(NN)=8.16 TeVen_US
dc.typeArticleen_US
dc.volume800en_US

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