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Title
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Direct measurement of the W production charge asymmetry in collisions at =1.96 TeV
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Author
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Institution/Organisation
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CDF Collaboration
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Abstract
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| We present the first direct measurement of the W production charge asymmetry as a function of the W boson rapidity yW in pp̅ collisions at √s=1.96 TeV. We use a sample of W→eν events in data from 1 fb-1 of integrated luminosity collected using the CDF II detector. In the region |yW|<3.0, this measurement is capable of constraining the ratio of up- and down-quark momentum distributions in the proton more directly than in previous measurements of the asymmetry that are functions of the charged-lepton pseudorapidity. |
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Language
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English
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Source (journal)
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Physical review letters. - New York, N.Y., 1958, currens
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Publication
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New York, N.Y.
:
American Physical Society
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2009
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ISSN
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0031-9007
[print]
1079-7114
[online]
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Volume/pages
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102
:18
(2009)
, p. 181801,1-181801,7
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ISI
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000265948600014
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Full text (Publisher's DOI)
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Full text (open access)
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