Measurement of the Z/gamma* boson transverse momentum distribution in pp collisions at root s=7 TeV with the ATLAS detector
Number of Authors: 2880
2014 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 9, 145- p.Article in journal (Refereed) Published
This paper describes a measurement of the Z/gamma* boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of root s = 7TeV at the LHC. The measurement is performed in the Z/gamma* -> e(+)e(-) and Z/gamma* -> mu(+)mu(-) channels, using data corresponding to an integrated luminosity of 4.7 fb(-1). Normalized differential cross sections as a function of the Z/gamma* boson transverse momentum are measured for transverse momenta up to 800 GeV. The measurement is performed inclusively for Z/gamma* rapidities up to 2.4, as well as in three rapidity bins. The channel results are combined, compared to perturbative and resummed QCD calculations and used to constrain the parton shower parameters of Monte Carlo generators.
Place, publisher, year, edition, pages
2014. no 9, 145- p.
IdentifiersURN: urn:nbn:se:uu:diva-237836DOI: 10.1007/JHEP09(2014)145ISI: 000343155200001OAI: oai:DiVA.org:uu-237836DiVA: diva2:769086
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1007/JHEP09(2014)1452014-12-052014-12-052014-12-05Bibliographically approved