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Measurement of the low-mass Drell-Yan differential cross section at root s=7 TeV using the ATLAS detector
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0003-3867-0336
Vise andre og tillknytning
Rekke forfattare: 29002014 (engelsk)Inngår i: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, nr 6, s. 112-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The differential cross section for the process Z/gamma* -> ll (l = e, mu) as a function of dilepton invariant mass is measured in pp collisions at root s = 7 TeV at the LHC using the ATLAS detector. The measurement is performed in the e and mu channels for invariant masses between 26 GeV and 66 GeV using an integrated luminosity of 1.6 fb(-1) collected in 2011 and these measurements are combined. The analysis is extended to invariant masses as low as 12 GeV in the muon channel using 35 pb(-1) of data collected in 2010. The cross sections are determined within fiducial acceptance regions and corrections to extrapolate the measurements to the full kinematic range are provided. Next-to-next-to-leading-order QCD predictions provide a significantly better description of the results than next-to-leading-order QCD calculations, unless the latter are matched to a parton shower calculation.

sted, utgiver, år, opplag, sider
2014. nr 6, s. 112-
Emneord [en]
Hadron-Hadron Scattering
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-149305DOI: 10.1007/JHEP06(2014)112ISI: 000338528300001Scopus ID: 2-s2.0-84904283666OAI: oai:DiVA.org:kth-149305DiVA, id: diva2:738912
Forskningsfinansiär
EU, European Research Council
Merknad

QC 20140819

Tilgjengelig fra: 2014-08-19 Laget: 2014-08-19 Sist oppdatert: 2019-12-04bibliografisk kontrollert

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Strandberg, Jonas

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtMorley, AnthonyStrandberg, Jonas
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