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Paper   IPM / Particles / 12145
School of Particles and Accelerator
  Title:   Measurement of the Rapidity and Transverse Momentum Distributions of Z Bosons in pp Collisions at sqrt(s) = 7 TeV
1.  Hessamadin Arfaei
2.  Hamed Bakhshiansohi
3.  Seyed Mohsen Etesami
4.  Ali Fahim
5.  Majid Hashemi
6.  Hoda Hesari
7.  Abideh Jafari
8.  Mohsen Khakzad
9.  A Mohammadi
10.  Mojtaba Mohammadi Najafabadi
11.  Saeid Paktinat
12.  Batool Safarzadeh
13.  Maryam Zeinali
  Status:   Published
  Journal: Phys. Rev. D
  No.:  032002
  Vol.:  85
  Year:  2011
  Supported by:  IPM
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 <Mll < 120 GeV) are reported. The results are obtained using a data sample of protonproton 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 pb-1. The distributions are measured over the ranges jyj < 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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