Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton–proton collisions at 8 TeV
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1-s2.0-S0370269315005754-main.pdf
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1.2 MB
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Author(s)
CMS Collaboration
Apyan, Aram
Barbieri, Richard Alexander
Baty, Austin Alan
Bierwagen, Katharina
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Date Issued
July 2015
Journal
Physics Letters B
Publisher
Elsevier BV
Citation
Khachatryan, V. et al. “Measurement of the Z Boson Differential Cross Section in Transverse Momentum and Rapidity in Proton–proton Collisions at 8 TeV.” Physics Letters B 749 (October 2015): 187–209 © 2015 CERN for the benefit of the CMS Collaboration
Version
Final published version
Abstract
We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy √s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb ⁻¹. The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the FEWZ program. The results are also compared to the commonly used leading-order MADGRAPH and next-to-leading-order POWHEG generators.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Attribution 4.0 International (CC BY 4.0)
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DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2015.07.065
