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Measurement of the electron charge asymmetry in inclusive W production in pp collisions at =7 TeV
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CMS Collaboration
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| Abstract |
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| A measurement of the electron charge asymmetry in inclusive pp -> W + X -> ev + X production at root s = 7 TeV is presented based on data recorded by the CMS detector at the LHC and corresponding to an integrated luminosity of 840 pb(-1). The electron charge asymmetry reflects the unequal production of W+ and W- bosons in pp collisions. The electron charge asymmetry is measured in bins of the absolute value of electron pseudorapidity in the range of vertical bar eta vertical bar < 2.4. The asymmetry rises from about 0.1 to 0.2 as a function of the pseudorapidity and is measured with a relative precision better than 7%. This measurement provides new stringent constraints for parton distribution functions. | | |
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English
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Physical review letters. - New York, N.Y. | |
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New York, N.Y. : 2012
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0031-9007
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109:11(2012), 15 p.
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111806
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000308588200005
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E-only publicatie
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