Constraints on PDFs from W and Z rapidity distributions at CDF

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The rapidity distributions of W and Z bosons produced in proton anti-proton collisions at CDF are presented. The rapidity distribution of Z bosons, measured for the first time over the entire kinematic range, is better described by NLO QCD (and also by QCD with gluon resummation) than by leading order QCD. The W charge asymmetry data as a function of rapidity strongly constrain the ratio of d and u quark momentum distributions in the proton over the x range of 0.006 to 0.34. The W data are used to rule out recently proposed models for charge and flavor symmetry violation ... continued below

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Bodek, A. July 20, 1999.

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The rapidity distributions of W and Z bosons produced in proton anti-proton collisions at CDF are presented. The rapidity distribution of Z bosons, measured for the first time over the entire kinematic range, is better described by NLO QCD (and also by QCD with gluon resummation) than by leading order QCD. The W charge asymmetry data as a function of rapidity strongly constrain the ratio of d and u quark momentum distributions in the proton over the x range of 0.006 to 0.34. The W data are used to rule out recently proposed models for charge and flavor symmetry violation of the sea quark distributions in the nucleon.

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139 Kilobytes

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  • 7th International Workshop on Deep Inelastic Scattering and QCD (DIS '99), DESY, Zeuthen, Germany, April 19-23, 1999

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  • Other: DE00009044
  • Report No.: FERMILAB-Conf-99/160-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 9044
  • Archival Resource Key: ark:/67531/metadc794635

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  • July 20, 1999

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  • Dec. 19, 2015, 7:14 p.m.

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  • Aug. 5, 2016, 3:55 p.m.

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Bodek, A. Constraints on PDFs from W and Z rapidity distributions at CDF, article, July 20, 1999; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc794635/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.