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Measurement of the transverse momentum distribution of Z/gamma* bosons in proton-proton collisions at root s=7 TeV with the ATLAS detector
DESY, D-2000 Hamburg, Germany .
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0002-8913-0981
Vise andre og tillknytning
2011 (engelsk)Inngår i: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 705, nr 5, s. 415-434Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A measurement of the Z/gamma* transverse momentum (p(T)(Z)) distribution in proton-proton collisions at root s = 7 TeV is presented using Z/gamma* -> e(+)e(-) and Z/gamma* -> mu(+)mu(-) decays collected with the ATLAS detector in data sets with integrated luminosities of 35 pb(-1) and 40 pb(-1), respectively. The normalized differential cross sections are measured separately for electron and muon decay channels as well as for their combination up to pi of 350 GeV for invariant dilepton masses 66 GeV < m(ll) < 116 GeV. The measurement is compared to predictions of perturbative QCD and various event generators. The prediction of resummed QCD combined with fixed order perturbative QCD is found to be in good agreement with the data.

sted, utgiver, år, opplag, sider
2011. Vol. 705, nr 5, s. 415-434
Emneord [en]
Z bosons, Differential cross section, Perturbative QCD, Event generators, Monte Carlo models
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-71582DOI: 10.1016/j.physletb.2011.10.018ISI: 000297490400001Scopus ID: 2-s2.0-80955137576OAI: oai:DiVA.org:kth-71582DiVA, id: diva2:487948
Merknad
QC 20120201Tilgjengelig fra: 2012-02-01 Laget: 2012-01-31 Sist oppdatert: 2017-12-08bibliografisk kontrollert

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