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Open AccessJournal ArticleDOI

Measurement of the rapidity and transverse momentum distributions of Z bosons in pp collisions at √(s)=7TeV

S. Chatrchyan, +2290 more
- 07 Feb 2012 - 
- Vol. 85, Iss: 3, pp 032002
TLDR
In this paper, the normalized rapidity (y) and transverse momentum (qT) distributions of Drell-Yan muon and electron pairs in the Z-boson mass region (60 <M(ll)<120 GeV) are reported.
Abstract: 
Measurements of the normalized rapidity (y) and transverse momentum (qT) distributions of Drell-Yan muon and electron pairs in the Z-boson mass region (60<M(ll)<120 GeV) are reported. The results are obtained using a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 inverse picobarns. The distributions are measured over the ranges |y|<3.5 and qT<600 GeV and compared with QCD calculations using recent parton distribution functions. Overall agreement is observed between the models and data for the rapidity distribution, while no single model describes the Z transverse-momentum distribution over the full range.

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Citations
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Parton distributions in the LHC era: MMHT 2014 PDFs

Lucian Harland-Lang, +3 more
- 09 May 2015 - 
TL;DR: In this paper, the authors presented LO, NLO and NNLO sets of parton distribution functions (PDFs) of the proton determined from global analyses of the available hard scattering data.
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Parton distributions from high-precision collider data

Richard D. Ball, +15 more
- 01 Jun 2017 - 
TL;DR: NNPDF31 as discussed by the authors is the first global set of PDFs determined using a methodology validated by a closure test, which is motivated by recent progress in methodology and available data, and involves both on the methodological side, parametrize and determine the charm PDF alongside the light-quark and gluon ones, thereby increasing from seven to eight the number of independent PDFs.
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Parton distributions from high-precision collider data

Richard D. Ball, +14 more
- 01 Jun 2017 - 
TL;DR: A new set of parton distributions, NNPDF3.1, is presented, which updates NN PDF3.0, the first global set of PDFs determined using a methodology validated by a closure test, and investigates the impact of parametrizing charm and evidence that the accuracy and stability of the PDFs are improved.
Journal ArticleDOI

Event generator tunes obtained from underlying event and multiparton scattering measurements

Vardan Khachatryan, +2286 more
- 17 Mar 2016 - 
TL;DR: Combined fits to CMS UE proton–proton data at 7TeV and to UEProton–antiproton data from the CDF experiment at lower s, are used to study the UE models and constrain their parameters, providing thereby improved predictions for proton-proton collisions at 13.
Journal ArticleDOI

Measurement of the Z/γ* boson transverse momentum distribution in pp collisions at √s = 7 TeV with the ATLAS detector

Georges Aad, +2914 more
- 24 Sep 2014 - 
TL;DR: In this paper, 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 is described.
References
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S. Chatrchyan, +3175 more
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Alan D. Martin, +3 more
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H. L. Lai, +7 more
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TL;DR: In this article, the authors extract new parton distribution functions (PDFs) of the proton by global analysis of hard scattering data in the general-mass framework of perturbative quantum chromodynamics.
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