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Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at $ \sqrt{s}=8 $ TeV with the ATLAS detector

dc.contributor.authorATLAS collaboration (2852 authors)
dc.contributor.authorAguilar-Saavedra, Juan Antonio
dc.contributor.authorAmor Dos Santos, Susana Patricia
dc.contributor.authorAnjos, Nuno
dc.contributor.authorAraque, Juan Pedro
dc.contributor.authorCantrill, Robert
dc.contributor.authorCarvalho, João
dc.contributor.authorCastro, Nuno Filipe
dc.contributor.authorConde Muiño, Patricia
dc.contributor.authorDa Cunha Sargedas De Sousa, Mario Jose
dc.contributor.authorFiolhais, Miguel
dc.contributor.authorGalhardo, Bruno
dc.contributor.authorGomes, Agostinho
dc.contributor.authorGonçalo, Ricardo
dc.contributor.authorJorge, Pedro
dc.contributor.authorLopes, Lourenco
dc.contributor.authorMachado Miguens, Joana
dc.contributor.authorMaio, Amélia
dc.contributor.authorManeira, José
dc.contributor.authorOleiro Seabra, Luis Filipe
dc.contributor.authorOnofre, António
dc.contributor.authorPalma, Alberto
dc.contributor.authorPedro, Rute
dc.contributor.authorSantos, Helena
dc.contributor.authorSaraiva, João
dc.contributor.authorSilva, José
dc.contributor.authorTavares Delgado, Ademar
dc.contributor.authorVeloso, Filipe
dc.contributor.authorWolters, Helmut
dc.date.accessioned2019-02-04T10:11:20Z
dc.date.available2019-02-04T10:11:20Z
dc.date.issued2016-08-01
dc.date.updated2019-02-04T10:11:20Z
dc.description.abstractThis paper presents a measurement of the double-differential cross section for the Drell-Yan Z/γ$^{∗}$ → ℓ$^{+}$ ℓ$^{−}$ and photon-induced γγ → ℓ$^{+}$ ℓ$^{−}$ processes where ℓ is an electron or muon. The measurement is performed for invariant masses of the lepton pairs, m$_{ℓℓ}$, between 116 GeV and 1500 GeV using a sample of 20.3 fb$^{−1}$ of pp collisions data at centre-of-mass energy of $ \sqrt{s}=8 $ TeV collected by the ATLAS detector at the LHC in 2012. The data are presented double differentially in invariant mass and absolute dilepton rapidity as well as in invariant mass and absolute pseudorapidity separation of the lepton pair. The single-differential cross section as a function of m$_{ℓℓ}$ is also reported. The electron and muon channel measurements are combined and a total experimental precision of better than 1% is achieved at low m$_{ℓℓ}$. A comparison to next-to-next-to-leading order perturbative QCD predictions using several recent parton distribution functions and including next-to-leading order electroweak effects indicates the potential of the data to constrain parton distribution functions. In particular, a large impact of the data on the photon PDF is demonstrated.
dc.description.versionPeer Reviewed
dc.identifierJHEP 1608 (2016) 009; DOI 10.1007/JHEP08(2016)009
dc.identifier.urihttp://dx.doi.org/10.1007/JHEP08(2016)009
dc.identifier.urihttp://hdl.handle.net/10400.26/27101
dc.language.isoeng
dc.titleMeasurement of the double-differential high-mass Drell-Yan cross section in pp collisions at $ \sqrt{s}=8 $ TeV with the ATLAS detector
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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