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  • PhysRevLett.112.042001

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Measurement of Associated Production of Z Bosons with Charm Quark Jets in pp¯ Collisions at s√=1.96  TeV

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  • D0 Collaboration
Article number042001
<mark>Journal publication date</mark>27/01/2014
<mark>Journal</mark>Physical review letters
Issue number4
Number of pages7
Publication StatusPublished
<mark>Original language</mark>English


We present the first measurements of the ratios of cross sections σ(pp¯→Z+c jet)/σ(pp¯→Z+jet) and σ(pp¯→Z+c jet)/σ(pp¯→Z+b jet) for the associated production of a Z boson with at least one charm or bottom quark jet. Jets have transverse momentum ​pjetT​>20  GeV and pseudorapidity |​ηjet​|<2.5. These cross section ratios are measured differentially as a function of jet and Z boson transverse momenta, based on 9.7  fb−1 of pp¯ collisions collected with the D0 detector at the Fermilab Tevatron Collider at s√=1.96  TeV. The measurements show significant deviations from perturbative QCD calculations and predictions from various event generators.

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© 2014 American Physical Society