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Measurement of Associated Production of Z Bosons with Charm Quark Jets in pp¯ Collisions at s√=1.96 TeV
Baringer, Philip S. Bean, Alice Wilson, Graham Wallace
Baringer, Philip S.
Bean, Alice
Wilson, Graham Wallace
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Abstract
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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This is the published version. Copyright © 2014 American Physical Society
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2014-01-27
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American Physical Society
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Baringer, Philip S., Alice Bean, Stephen J. Sanders, and Robert W. Stringer. "Measurement of Associated Production of Z Bosons with Charm Quark Jets in Pp¯ Collisions at S√=1.96 TeV." Physical Review Letters 112.4 (2014). http://dx.doi.org/10.1103/PhysRevLett.112.042001