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

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

Measurements of the normalized rapidity (y) and transverse-momentum (q[subscript T]) distributions of Drell–Yan muon and electron pairs in the Z-boson mass region (60<M[subscript ℓℓ]<120  GeV) are reported. The results are obtained using a data sample of proton-proton collisions at a center-of...

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Bibliographic Details
Main Authors: Alver, Burak Han, Bendavid, Joshua L., Busza, Wit, Butz, Erik M., Cali, Ivan Amos, Chan, M., Dutta, Valentina, Gomez-Ceballos, Guillelmo, Goncharov, Maxim, Hahn, Kristian Allan, Kim, Y., Klute, Markus, Li, W., Ma, Teng, Nahn, Steven, Paus, Christoph M. E., Ralph, Duncan Kelley, Stephans, George S. F., Stoeckli, Fabian, Sung, Kevin Kai Hong, Velicanu, Dragos Alexandru, Wenger, Edward Allen, Wyslouch, Boleslaw, Xie, Si, Yilmaz, Yetkin, Zanetti, Marco, Harris, Philip Coleman, Roland, Christof E, Rudolph, Matthew Scott, Yang, Mingming, Yoon, A. S., Bauer, Gerry P, Lee, Yen-Jie, Luckey Jr, P David, Roland, Gunther M, Sumorok, Konstanty C, Wolf, Roger
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2012
Online Access:http://hdl.handle.net/1721.1/70584
https://orcid.org/0000-0002-3831-9071
https://orcid.org/0000-0003-3106-4894
https://orcid.org/0000-0001-6332-5839
https://orcid.org/0000-0001-8983-2169
https://orcid.org/0000-0002-1260-777X
https://orcid.org/0000-0002-6047-4211
https://orcid.org/0000-0003-3681-0649
https://orcid.org/0000-0003-2593-7767
https://orcid.org/0000-0002-0869-5631
Description
Summary:Measurements of the normalized rapidity (y) and transverse-momentum (q[subscript T]) distributions of Drell–Yan muon and electron pairs in the Z-boson mass region (60<M[subscript 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 Large Hadron Collider (LHC), corresponding to an integrated luminosity of 36  pb[superscript -1]. The distributions are measured over the ranges |y|<3.5 and q[subscript T]<600  GeV and compared with quantum chromodynamics (QCD) calculations using recent parton distribution functions to model the momenta of the quarks and gluons in the protons. 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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